Name:  Scapolite and Biotite Crystals

Dimensions: 19x17x8 mm / 0

Product ID: SPDB93526

Specimens with a high uranium content are typically metamict and appear coated with a yellow brown earthy rind

This is a strand of bright golden yellow Citrine beads with an overall length of 36 cm (14 inches)

Cassiterite Crystals | Black | Lot in a Jar | Tin Gulch, Grant Co. | New Mexico | SO24 Impactite-in-a-Box Name: Scapolite and Biotite CrystalsMost cassiterite crystals have opaque, dark colors, usually black or brown. Lighter colored, facetable crystals are much rarer and usually occur in small fragments. With a dispersion or fire almost twice that of diamond as well as vitreous to adamantine luster, transparency, and a hardness of 6 7, faceted cassiterites would make good jewelry stones. Cassiterite is a durable gemstone with tremendous dispersive fire, especially visible in properly cut