Biotite on Anthophyllite | Czech Republic metal 5” x 1” x 5”

5” x 1” x 5” and weighs 23 oz

radiating crystal cluster

Brecciated fluorite is a unique

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 5” x 1” x 5”Biotite 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