Biotite on Anthophyllite | Czech Republic metal 25” x 3” and weighs

25” x 3” and weighs 5

Brecciated fluorite is a unique

This item is1

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

Dalnegorsk is renowned for producing world-class quartz specimens

Biotite on Anthophyllite | Czech Republic metal 25” x 3” and weighsBiotite 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