QUARTZ PREHNITE CLUSTER
A great Quartz Prehnite Cluster for the collection. A palm sized cluster of Quartz Crystals with globular light green Prehnite on top. Prehnite takes a few forms, we have others available quite different from this one. It is quite an unusual piece and very old stock, I haven’t seen this stuff about for many moons. Sits more or less flat and could also be put on a stand if in a cabinet.
9.3cm x 9.2cm x 3cm, 176g.
Hongxi Mine, Sichuan, China
When pure, quartz forms colourless, transparent and very hard crystals with a glass like luster. A natural form of silicon dioxide. Found in a large range of varieties and colours. Today it leads technology being the main component of transistors which make our computers work and solar panels.
Prehnite is a member the Phyllosilicates Subclass. Like zeolites, Prehnite can give off water when heated, but can not gain the water back like they can. Its colour is a pleasant green and is at times quite unique to Prehnite. Prehnite is harder than all of these and lacks Smithsonite’s unusual luster. Hemimorphite is usually blue and Gyrolite is not as glassy. Its colour, luster, associations and crystal habits make it a joy to own.