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Minerals of the World
Showing 211–225 of 826 results
- Crystals, Minerals of the World
FLUORITE PURPLE YELLOW
Great clusters of lovely Fluorite Purple Yellow Crystals. There are two of them one Purple and the other is Yellow. I did not want to separate them as they look like the have similar collection catalogue numbers attached. Strikingly coloured and quite different to many of the other fluorite specimens collectors tend to have. The Yellow is 1014337 and the Purple is 1012441. The location for the Purple Fluorite is missing, the Yellow specimen comes from Spain. Stunning little examples of Fluorite with really good Cubic Crystals.
Location:
Moscana Mine, Asturius, Spain.Dimensions:
Purple Fluorite 5.1cm x 3.6cm x 3.7cm, 50g.
Yellow Fluorite 4.3cm x 3.5cm x 2.1cm, 31g.Fluorite: CaF2
Calcium Fluoride.SKU: G0403-1 - Crystals, Minerals of the World, Uncategorized
GREEN TOURMALINE CONSTRUCT
GREEN TOURMALINE CONSTRUCT. Just to be quite clear this is not a natural specimen. It is an example of fakery, aka fake. This is a good bad and ugly specimen. Good is the quality of a beautiful green natural Tourmaline crystals, worth the money. The bad is someone intended to palm this fake off as a natural specimen. It has been glued to conceal a broken crystal and they did a pretty bad glue job too. A typical type of specimen and the location is also renowned for similar fakes. The large green Tourmaline crystals is glued into where another different Tourmaline crystal broke off. All the crystals are real and the big one is great.
This is a construct where a specimen has been glued into a matrix. It was in the collection for many years and originally purchased from a retired dealer. Hopefully you all look at your specimens in particular gem specimens with a 10 x mag and strong light. Also fluorescent UVA and UVB can be helpful in detecting glues. They are well knowledged in their art and sprinkle crystal dust on top of the glue to conceal it. One of the give always on this glue job is the angle is wrong in orientation with the quartz crystal. Repaired specimens are OK (to some people) and always labeled as such repaired or R in the title. This specimen sits freely on a perspex stand.
Dimensions:
6.6cm x 5cm x 4cm, 75g.
Location:
Paprok, Afghanistan.SKU: n/a - Crystals, Minerals of the World
STILBITE APOPHYLLITE QUARTZ
A quality specimen of Stilbite Apophyllite Quartz crystals on matrix. Great collection specimen featuring good crystal formation. Interesting and a good representation of Indian minerals.
Location:
India.Dimensions:
7.8cm x 5.8cm x 4cm, 146g.Fluorapophyllite
Apophyllite
KCa4(Si8O20)(F,OH) · 8H2O.SKU: MW5014-2 - Crystals, Minerals of the World, Quartz, Top Shelf
AMETHYST SPIRIT QUARTZ CLUSTER
A sweet Amethyst Spirit Quartz Cluster for the crystal lover. A natural delicately coloured Amethyst in a cluster that sits upright. Many tiny perfect little micro crystals surround and cover the top of the matrix and points. This is a very collectable piece of a popular mineral that will be a super new addition to your crystal toolbox or collection. RocknCrystals have been importing Spirit Quartz direct for many years and we always have several specimens online to choose from. Make someones Christmas extra special with this awesome cluster! For enhanced display specimen is mounted on a perspex pad.
Location:
Boekenhouthoek, South Africa.Dimensions:
8.6cm x 4.9cm x 5.2cm, 114g.Variety of:
Quartz, SiO2SKU: F0403 - Crystals, Minerals of the World
EPIDOTE DIOPSIDE ANATASE SPECIMEN
An Epidote Diopside Anatase Crystal Specimen. Small sparkling translucent crystals cover the top of matrix.
Dimensions:
6.8cm x 3.5cm x 3.24.1cm, 85g.Location:
Baluchistan, Pakistan.Epidote
Ca2(Al, Fe)3(SiO4)3(OH)
Calcium Aluminum Iron Silicate Hydroxide
Diopside
CaMgSi2 O6
Calcium Magnesium Silicate
Anatase
TiO2
Titanium OxideSKU: n/a - Crystals, Minerals of the World
CALCITE PREHNITE QUARTZ BRANDBERG
A specimen of Calcite Prehnite Quartz Brandberg on matrix. Specimen featuring good crystal formation and displays well on three cut faces. Interesting and a good representation of minerals. Large enough to be a feature piece.
Location:
Brandberg, Namibia.Dimensions:
12.8cm x 7cm x 7.5cm, 612g.Prehnite:
Ca2 Al2 Si3 O10(OH)2
Calcium Aluminum Silicate Hydroxide.SKU: MW5014-1 - Crystals, Metal Specimens, Minerals of the World
PYRITE OCTAHEDRAL CRYSTALS
Rare to find this geometric form of PYRITE OCTAHEDRAL CRYSTALS. A great little cluster for the collector showing another formation of this popular metal. The mineral pyrite, or iron pyrite, also known as fool’s gold, is an iron sulfide which has the chemical formula FeS2. This mineral’s metallic luster and pale brass yellow hue give it a superficial resemblance to gold, hence the well-known nickname of fool’s gold. Pyrite is difficult to photograph and this one looks way better in person and shows the golden brass colour.
Dimensions:
5.2cm x 4.8cm x 4.9cm, 225g.Location:
Huanzala, Peru.Pyrite
FeS2.SKU: MW6997 - Australian Minerals, Minerals of the World
CROCOITE CLUSTER
A striking Crocoite Cluster specimen. The beautiful bright orange crystals really stand out on the matrix. This piece is mounted on perspex to go straight into your cabinet for an instant splash of colour. An Aussie classic, essential for any mineral collection.
Location:
Adelaide Mine, Dundas, Tasmania.Dimensions:
8.3cm x 7.1cm x 3.3cm, 84g.Lead Chromate: Pb(CrO4).
SKU: MA0968 - Australian Minerals, Crystals, Fluorescent Specimens, Metal Specimens, Minerals of the World
MANGANO CALCITE PYRITE
-20%
Australian Minerals, Crystals, Fluorescent Specimens, Metal Specimens, Minerals of the WorldMANGANO CALCITE PYRITE
Lovely Pyrite Mangano Calcite Couple. Two specimens from the same location were in an old stock box and here they are. One in a triangle crystal shape with mass coating of micro Pyrite on one side. Another light coloured crystals cluster with minor Micro Pyrite. Both of these specimens are fluorescent under the long and short of it. UVC and UVA, just for good measure a few pics showing very brief phosphorescence with a UV laser. Just the kind many crystal lovers choose over more perfect collectible pieces. A super nice piece and something different from the more commonly available.
Location:
Broken Hill, New South Wales, Australia.Dimensions:
6.6cm x 4.8cm x 2.7cm, 86g.
6cm x 4.6cm x 2.3cm, 58g.Mangano Calcite
(Ca,Mn)CO3.SKU: H0203 - Australian Minerals, Crystals, Metal Specimens, Minerals of the World, Pyrite
AUSSIE PYRITE CALCITE SPECIMEN BH
Australian Minerals, Crystals, Metal Specimens, Minerals of the World, PyriteAUSSIE PYRITE CALCITE SPECIMEN BH
Make this Aussie Pyrite Calcite Specimen BH a truly unique gift for yourself or someone good. Lovely crystals clustered together with some fluorescent Mangano Calcite long and short wave uv. The Pyrite crystals are amazing with sharp cubic twin formations and some Chalcopyrite on the sides. A great piece at a super price. Pyrite is a popular mineral for its great crystal shape, interesting associations and properties.
Dimensions:
3cm x 3.5cm x 1.5cm, 20g.Location:
Broken Hill, New South Wales, Australia.Pyrite: FeS2.
SKU: MW8355-1-2 - Crystals, Minerals of the World
BLACK TOURMALINE CRYSTAL
Black Tourmaline Crystal. Large, well formed Tourmaline Crystal! Beautiful and hard to come by this good. We were very lucky to come across such a beautiful piece. A superb specimen for the Minerals collector.
Dimensions:
4.6cm x 4.4cm x 3cm, 100g.Tourmaline Formula.
Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH).
SKU: n/a - Crystals, Minerals of the World
ERYTHRITE MINERAL SPECIMEN
An Erythrite Mineral Specimen to add to your collection. Good formation of translucent Erythrite Crystals in the classic colour of Crimson. As with some of the best most brightly coloured minerals this one contains a toxin, in this case Arsenic. Three is a cavity in this specimen protecting some larger protruding crystals.
Erythrite is a wonderful mineral for people who like striking, unusual colors. The unique red purple color of Erythrite is very attractive. The nice sparkle makes this mineral a joy to add to your collection.
Location:
Bou Azzer, Morocco.Dimensions:
5.4cm x 2.5cm x 1.8cm, 32g.ERYTHRITE
Hydrated Cobalt Arsenate
Co3(AsO4)2-8(H2O)SKU: n/a - Crystals, Minerals of the World, Quartz
PINK TOURMALINE QUARTZ 5
An awesome Pink Tourmaline Quartz 5. This chunk of Quartz is full of deep pink Tourmaline crystals. The pink and white are a great contrast. This is a sturdy specimen and a good hand sized rock. It is extra quality Tourmaline and a very collectable piece for the mineral and crystal enthusiast.
Location:
Brazil.Dimensions:
6.5cm x 3.5cm x 2.7cm, 63g.Tourmaline:
Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH).
SKU: F1315 - Crystals, Himalayan Quartz & Kyanite, Minerals of the World, Quartz
HIMALAYAN CHLORITE QUARTZ
A beautiful crystal of sought after Nepalese Himalayan Chlorite Quartz. Quartz Crystals with Chlorite throughout. One large double terminated needle quartz crystal with a few other attached attempting to form a star cluster. Mounted on a perspex pad. Chlorites are popular with healers and collectors alike for their healing and physical properties and rarity. We source our crystals directly from the miners.
Location:
Dhading District, Bagmati Zone, Nepal.Dimensions:
7cm x 3.3cm x 2.9cm, 6g.Iron Aluminum Magnesium Silicate Hydroxide.
(Fe, Mg, Al)6(Si, Al)4O10(OH)8.
SKU: MW7485
