Vanadinite Crystals on Matrix - Morocco Howlite is a calcium borosilicate

Howlite is a calcium borosilicate mineral

45 ozFossil Type & Species: Trace Fossil & "Grallator"Location: Portland Formation

Ferrous iron (Fe2+) causes the blues while ferric iron (Fe3+) causes the yellows

Stone: Clear Quartz on Wood

Dalmatian Jasper gets its name from the resemblance of the dog breed dalmatian

Vanadinite Crystals on Matrix - Morocco Howlite is a calcium borosilicateThis specimen of vanadinite is near perfect in appearance. With slightly larger crystals than some of our other smaller display pieces, it is coated on every side, reflecting light in all directions. This specimen is sure to be a staple in your collection. Size: 2. 4 x 1. 9 x 1. 2 in. Weight: 2. 0 oz Location: Morocco, Africa Vanadite specimens are very popular. Vanadinite is a mineral that is composed of vanadium, lead, oxygen, and chlorine.