Biotite on Anthophyllite | Czech Republic metal crystallized mineral is a secondary

crystallized mineral is a secondary mineral commonly found in hydrothermal lead deposits

often forms with vertical striations

Dalnegorsk is renowned for producing world-class quartz specimens

fluorite also hides remarkable fluorescent properties only visible under UV light- and is actually the source of our word "fluorescent"

” displays fine inclusions of pyrite that add a metallic shimmer to its soft green surface

Biotite on Anthophyllite | Czech Republic metal crystallized mineral is a secondaryBiotite 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 x 1. 5 and weighs 2. 6 oz