Biotite on Anthophyllite | Czech Republic Kyanite Russia features well-formed clear beta

Russia features well-formed clear beta quartz crystals accented by a coating of fine blue-grey druzy quartz

Black Tourmaline is a common

5” x 2” and weighs 2

5" and weighs 1lb

37" x 2" and weighs 9

Biotite on Anthophyllite | Czech Republic Kyanite Russia features well-formed clear betaBiotite on anthophyllite refers to a common geological occurrence where dark mica (biotite) crystals grow within or around fibrous anthophyllite, an amphibole mineral, often forming attractive specimens with distinct textures like bladed crystals or nodular "balls," indicating specific metamorphic conditions (low HCl fluids). This item is 3. 5 x 2 and weighs 8. 0 oz