Biotite on Anthophyllite | Czech Republic minerals 5” and weighs 3

5” and weighs 3

This polished freeform highlights its vivid royal blue tones accented by shimmering gold and soft white calcite veining

This item is 6 x 3

This item is 10” x 6” and weighs 3 lbs 12 oz

Featuring a contrast of the brassy luster of the pyrite with the white snowy texture of the quartz

Biotite on Anthophyllite | Czech Republic minerals 5” and weighs 3Biotite 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 2. 5 x 1. 5 and weighs 4. 55 oz