Calcite with red, black, and colorless druzy Albite Zebra varieties are commonly recommended

Zebra varieties are commonly recommended as clean-up crews in bioactive terrariums

Looking closely

giving it a grainy texture

not natural bending

A light tan mineral grows in beady round spots coating the bottom half of the piece and the other side

Calcite with red, black, and colorless druzy Albite Zebra varieties are commonly recommendedLocale: Santa Eulalia, Chihuahua, Mexico Approx dimensions: 4. 75 x 3 x 1. 25" Approx weight: 218g This is one of my favorites of the Santa Eulalia calcite material. The specimen has formed botryoidal (round, bubbly) shapes composed of a speckled combination of red, black, and light yellow crystals. Under magnification they appear to be intersecting rhombs of calcite, some heavily included with hematite which causes both the black and vivid red