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Search results: “calcite” – Page 5
Showing 61–75 of 291 results
- Jade, Rock 'n Slabs, Rocks, Top Shelf
BLACK JADE NEPHRITE 01
Stunning Black Jade Nephrite 01 ready for slabbing or carving. This is genuine Black Nephrite Jade from Cowell. The grade is A grade and is very hard to come by, the grade comes from being a solid dark black with tight grain and no or minimal inclusions of material like white Tremolite specs. Colour is black, with a thin rind fading to green grey. This variant of jade is popular and is used, in particular, for carving into super-lustrous pendants and jewellery.
One of the toughest rocks on the planet. The Black colour is from an inclusion of Iron of up to 8%. The stone has two cut faces which makes it easy to hold in a vice for diamond saw cutting. The slight translucency that I can see is with a strong Jade torch. BLACK JADE NEPHRITE 01. This stuff is best polished with aluminium oxide then diamond to get the mirror finish. This particular piece will be bought for cutting into jewellery, as a mineral specimen or as an appreciating asset. This grade of Jade only goes up in price as time goes by.
Location:
Cowell, South Australia, Australia.Dimensions:
10.4cm x 9.2cm x 4.5cm, 603g.JADE NEPHRITE BLOCK
SKU: D1405-1 - Fluorescent Specimens, Metal Specimens, Minerals of the World, Rock 'n Slabs, Slabs, Top Shelf
WILLEMITE FLUORESCENT SLAB 07
-5%
Fluorescent Specimens, Metal Specimens, Minerals of the World, Rock 'n Slabs, Slabs, Top ShelfWILLEMITE FLUORESCENT SLAB 07
A stunning specimen of Willemite Fluorescent Slab 07 showing off the brightest fluorescence of all natural minerals Willemite. This rare special specimen is short and long wave fluorescent. The dark grey metal shown in the natural light photos is Zinc ore Franklinite. The white mineral is Mangano Calcite, shows as Pink with UVA Long Wave and Orange with UVC Short Wave. The Willemite is Bright Mesmerising Green under both fluorescent wave lengths. Pics taken with shortwave, longwave, and sunlight. Very cool stuff and this is one of my very favorite rocks. This is a small high quality specimen with bright fluorescence at a bargain price. The Slab is intended as a specimen and may have natural fractures which may not make it suitable for Lapidary work.
To view this spectacular specimen’s fluorescent colours you will need a UVC Shortwave Lamp and UVA Longwave Lamp. Make sure you wear safety glasses. Willemite Franklinite Calcite is also known as the Christmas Tree Rock for the colours Green and Red. This is a quality collectable specimen with wow factor.
Location:
Franklin, New Jersey, USA.Dimensions:
1.1cm x 5cm x 9.5cm, 175g.Willemite, Zinc Silicate Zn2Sio4
Check out more Fluorescent Specimens for sale here
The Historical Story of Franklin Mine
SKU: WFS-7 - Jewellery
LAPIS BEAD STRING GRADUATED
Stunning Lapis Bead String Graduated Spheres. A genuine quality Lapis Lazuli Bead String from Afghanistan, natural deep dark blue colour. A beautiful gift or treat. Ready for making into a stunning Necklace Fashion statement. Use a Gold Clasp and Bead Cushions to make this Necklace extra special. These Beads are from very old stock.
Dimensions:
D 1.65cm – D 0.63cm x 42.7cm, 66g.Location:
Afghanistan.Lapis Lazuli.
Lazurite Na6Ca2(Al6Si6O24)(SO4,S,S2, S3,Cl,OH)2.
PyriteFeS2.
Calcite CaCO3.Lazurite is a popular but generally expensive mineral. Well-formed, deep blue crystals are rare and valuable. It is more commonly found massive and combined with other minerals into a rock called lapis lazuli. Lapis lazuli or lapis for short is mostly lazurite but commonly contains pyrite and calcite and some other minerals. The name means “blue rock” and is always a brilliant blue with violet or greenish tints. The rich blue colour is due to the sulfur that is inherent in the structure of lazurite. Small crystals of pyrite are always present in lapis and their brassy yellow colour is both attractive and diagnostic in distinguishing lapis from its also blue cousin – sodalite rock, which lacks pyrite.
SKU: J24LBSG01 - Australian Minerals
AZURITE SUN MATRIX
A vibrant Azurite Sun Matrix from the renowned Malbunka Copper Mine. This specimen features a single azure blue Azurite Sun atop the Kaolinite matrix. This is a classic, top Australian collectors specimen. This beautiful specimen would grace any mineral collection and no Australian one would be complete without a sample. Azurite from this mine forms differently to other types. Specimens like this are the most popular and continue to demand high prices internationally. Spoil yourself with this beautiful Aussie mineral specimen. Your future self will thank you for it. This one was a challenge to photograph.
Dimensions:
4.7cm x 6.5cm x 6.7cm, 104g.
Azurite Sun 2.8cm diameter.Location:
Malbunka Copper Mine, Areyonga, Northern Territory, Australia.Check out more Australian Minerals for sale here
SKU: A23AS01 - Crystals, Gem Crystals, Metal Specimens, Minerals of the World
CLEIOPHANE GALENA CRYSTALS
A stunning Cleiophane Galena Crystal Specimen on a Quartz matrix. Featuring many well formed crystals of Cleiophane – some on twinned Octocube Galena crystal forms. A sprinkling of micro Chalcopyrite is noticeable. Cleiophane is the gemmy or purer version of Sphalerite, sought after for its rarity and beauty. An outstanding addition to the metals cabinet for a serious collector. A real wow piece, my photos don’t do it justice. Not common Cleiophane or twinned Octocube Galena to come by and at a bargain price. The location is also classic of where some of the best Sphalerite, Galena and Quartz specimens are from. Almost forgot to mention some amazing Mangano Calcite comes from here too.
Location:
Madan, Bulgaria.Dimensions:
5.2cm x 4.6cm x 4.6cm, 102g.Sphalerite: ZnS
SKU: M23CG01 - Metal Specimens, Minerals of the World
PYRRHOTITE OLD STOCK
An amazing mineral Pyrrhotite Old Stock! A collection-worthy piece. This specimen displays a crystal of Pyrrhotite and is from old stock. Pyrrhotite crystals are rare and hard to come by. A single partial crystal with laminated structure, minor surface Pyrite and some Calcite. An interesting difference between Pyrite and Pyrrhotite is a magnet will stick to Pyrrhotite but not to Pyrite. Please read the interesting details below about weakly magnetic and two minerals in one.
Location:
Dimensions:
5cm x 4.8cm x 5.5cm, 299g.Pyrrhotite: Fe7S8,
SKU: M23PH02 - Fluorescent Specimens, Metal Specimens, Minerals of the World, Rock 'n Slabs, Slabs, Top Shelf
WILLEMITE FLUORESCENT SLAB 03
-4%Fluorescent Specimens, Metal Specimens, Minerals of the World, Rock 'n Slabs, Slabs, Top ShelfWILLEMITE FLUORESCENT SLAB 03
A stunning specimen of Willemite Fluorescent Slab 03 showing off the brightest fluorescence of all natural minerals Willemite. This rare special specimen is short and long wave fluorescent. The dark grey metal shown in the natural light photos is Zinc ore Franklinite. The white mineral is Mangano Calcite, shows as Pink with UVA Long Wave and Orange with UVC Short Wave. The Willemite is Bright Mesmerising Green under both fluorescent wave lengths. Pics taken with shortwave, longwave, and sunlight. Very cool stuff and this is one of my very favorite rocks. This is a small high quality specimen with bright fluorescence at a bargain price. The Slab is intended as a specimen and may have natural fractures which may not make it suitable for Lapidary work.
To view this spectacular specimen’s fluorescent colours you will need a UVC Shortwave Lamp and UVA Longwave Lamp. Make sure you wear safety glasses. Willemite Franklinite Calcite is also known as the Christmas Tree Rock for the colours Green and Red. This is a quality collectable specimen with wow factor.
Location:
Franklin, New Jersey, USA.Dimensions:
1.2cm x 6cm x 9.5cm, 202g.Willemite, Zinc Silicate Zn2Sio4
Franklinite, Zinc Iron Manganese Oxide Zn2+Fe23+O4
Mangano Calcite, (Ca,Mn)CO3.
Check out more Fluorescent Specimens for sale here
The Historical Story of Franklin Mine
SKU: WFS-3 - Fluorescent Specimens, Metal Specimens, Minerals of the World, Rock 'n Slabs, Slabs, Top Shelf
WILLEMITE FLUORESCENT SLAB 06
-5%Fluorescent Specimens, Metal Specimens, Minerals of the World, Rock 'n Slabs, Slabs, Top ShelfWILLEMITE FLUORESCENT SLAB 06
A stunning specimen of Willemite Fluorescent Slab 06 showing off the brightest fluorescence of all natural minerals Willemite. This rare special specimen is short and long wave fluorescent. The dark grey metal shown in the natural light photos is Zinc ore Franklinite. The white mineral is Mangano Calcite, shows as Pink with UVA Long Wave and Orange with UVC Short Wave. The Willemite is Bright Mesmerising Green under both fluorescent wave lengths. Pics taken with shortwave, longwave, and sunlight. Very cool stuff and this is one of my very favorite rocks. This is a small high quality specimen with bright fluorescence at a bargain price. The Slab is intended as a specimen and may have natural fractures which may not make it suitable for Lapidary work.
To view this spectacular specimen’s fluorescent colours you will need a UVC Shortwave Lamp and UVA Longwave Lamp. Make sure you wear safety glasses. Willemite Franklinite Calcite is also known as the Christmas Tree Rock for the colours Green and Red. This is a quality collectable specimen with wow factor.
Location:
Franklin, New Jersey, USA.Dimensions:
1cm x 5.5cm x 11.5cm, 164g.Willemite, Zinc Silicate Zn2Sio4
Franklinite, Zinc Iron Manganese Oxide Zn2+Fe23+O4
Mangano Calcite, (Ca,Mn)CO3.
Check out more Fluorescent Specimens for sale here
The Historical Story of Franklin Mine
SKU: WFS-6 - Fluorescent Specimens, Metal Specimens, Minerals of the World, Rock 'n Slabs, Slabs, Top Shelf
WILLEMITE FLUORESCENT SLAB 05
Fluorescent Specimens, Metal Specimens, Minerals of the World, Rock 'n Slabs, Slabs, Top ShelfWILLEMITE FLUORESCENT SLAB 05
A stunning specimen of Willemite Fluorescent Slab 05 showing off the brightest fluorescence of all natural minerals Willemite. This rare special specimen is short and long wave fluorescent. The dark grey metal shown in the natural light photos is Zinc ore Franklinite. The white mineral is Mangano Calcite, shows as Pink with UVA Long Wave and Orange with UVC Short Wave. The Willemite is Bright Mesmerising Green under both fluorescent wave lengths. Pics taken with shortwave, longwave, and sunlight. Very cool stuff and this is one of my very favorite rocks. This is a small high quality specimen with bright fluorescence at a bargain price. The Slab is intended as a specimen and may have natural fractures which may not make it suitable for Lapidary work.
To view this spectacular specimen’s fluorescent colours you will need a UVC Shortwave Lamp and UVA Longwave Lamp. Make sure you wear safety glasses. Willemite Franklinite Calcite is also known as the Christmas Tree Rock for the colours Green and Red. This is a quality collectable specimen with wow factor.
Location:
Franklin, New Jersey, USA.Dimensions:
0.8cm x 6cm x 11cm, 165g.Willemite, Zinc Silicate Zn2Sio4
Franklinite, Zinc Iron Manganese Oxide Zn2+Fe23+O4
Mangano Calcite, (Ca,Mn)CO3.
Check out more Fluorescent Specimens for sale here
The Historical Story of Franklin Mine
SKU: WFS-5 - Galena, Metal Specimens, Minerals of the World, Quartz
GALENA CRYSTAL CUBES
An interesting small specimen of Galena Crystal Cubes. Shiny cubes of Galena, some minor Chalcopyrite with Quartz Crystals on matrix. Start or add to your metals collection with a specimen from this premier location. A super piece, my photos don’t do it justice. The Octocube Galena crystals show great reflection indicating very high Silver content.
Dimensions:
4.2cm x 5cm x 2cm, 30g.Location:
Borieva Mine, Madan, Bulgaria.SKU: M23GC01 - Metal Specimens, Minerals of the World, Top Shelf, Uncategorized
CARROLLITE
A top rare Carrollite metal specimen to add to your collection. Stunning bright crystal surfaces with sharp edges. Great size on a Calcite matrix with associated mineral like golden and rainbow Chalcopyrite and others. A well formed large, Octahedral Carrollite crystal is perched prominently on the matrix of this specimen. Check out the video of this specimen on this page.
Dimensions:
9.9cm x 6.1cm x 4.3cm, 308g.
Crystal 14.5mm x 16mm.Location:
D.R. Congo, Africa.Carrollite was discovered in Carroll County, Maryland, and recognized as a mineral species in 1852. It is named for Carroll County. Carrollite is collected for its mineralogical rarity, rarity of sizeable crystals, unusual chemical composition as one of the relatively few cobalt-bearing minerals, high degree of cubic-crystal development, and associations in composite specimens with such minerals as quartz and calcite.
CARROLLITE
copper cobalt sulfide
CuCo2S4.SKU: M22C01 - Jade
AUSSIE NEPHRITE JADE ROUGH 06
Aussie Nephrite Jade Rough 06 ready for a crafts person to carve or make jewellery with. This is genuine true nephrite jade from Cowell, South Australia (where the best Black Jade in the world comes from). This variant of jade is becoming more scarce and is used, in particular, for carving into super-lustrous pendants and jewellery. One of the toughest rocks on the planet. The Black colour is from an inclusion of Iron of up to 8%. This particular rock is Black Jade in a corner triangle shape, would suit carving into cabs or guitar picks or a few small Black Jade Pendants.
Some pics are with wet and dry stone to show the quality of colour and reflection. This stone is best polished with aluminium oxide then diamond to get the mirror finish.
Location:
Cowell, South Australia, Australia.Dimensions:
4cm x 4cm x 4cm, 136g.TOP BLACK JADE ROUGH
SKU: J23NJR06 - Jade, Rock 'n Slabs, Slabs, Slabs
AUSSIE NEPHRITE JADE SLAB 04
Aussie Nephrite Jade Slab 04 ready for a crafts person to carve or make jewellery with. This is genuine true nephrite jade from Cowell, South Australia (where the best Black Jade in the world comes from). This variant of jade is becoming more scarce and is used, in particular, for carving into super-lustrous pendants and jewellery. One of the toughest rocks on the planet. The Black colour is from an inclusion of Iron of up to 8%.
Some pics are with wet and dry stone to show the quality of colour and reflection. You can see the green from a strong jade torch. This stone is best polished with aluminium oxide then diamond to get the mirror finish.
Location:
Cowell, South Australia, Australia.Dimensions:
12cm x 5cm x 0.9cm, 128g.TOP BLACK JADE ROUGH
SKU: J23NJS04 - Jade, Rock 'n Slabs, Slabs, Slabs
AUSSIE NEPHRITE JADE SLAB 02
Aussie Nephrite Jade Slab 02 ready for a crafts person to carve or make jewellery with. This is genuine true nephrite jade from Cowell, South Australia (where the best Black Jade in the world comes from). This variant of jade is becoming more scarce and is used, in particular, for carving into super-lustrous pendants and jewellery. One of the toughest rocks on the planet. The Black colour is from an inclusion of Iron of up to 8%.
Some pics are with wet and dry stone to show the quality of colour and reflection. You can see the green from a strong jade torch. This stone is best polished with aluminium oxide then diamond to get the mirror finish.
Location:
Cowell, South Australia, Australia.Dimensions:
11cm x 5.5cm x 0.65cm, 89g.TOP BLACK JADE ROUGH
SKU: J23NJS02
