Its dimensions are 113x42x34mm

appear to have went through a metamorphism

The crystals are well defined and look beautiful together

Phantom quartz is a variety of quartz

This is a strand of Labradorite beads with an overall length of 37 cm (14

Biotite Mica Book | Black Crystal | 173.8 Grams | Ontario, Canada | SO24 Scholzite Its dimensions are 113x42x34mmName: Biotite Mica Specimen Size: Large Cabinet Sized Dimensions: 132x101x10 mm 5. 2x4. 0x0. 4 inches Weight: 173. 8 Grams 6. 1 Ounces Origin: Ontario, Canada This is a sharp, beautiful, black Biotite crystal book from the Calcite Vein Dikes of the Grenville Geological Province Ontario, Canada. This biotite has classic crystal shape and attractive dark black coloration. This specimen is a great example of both, Biotite is rarely considered a valuable