Calcite with brown-red intersecting pyramid druzy Spider jasper if it gets knocked over

if it gets knocked over

I’ll admit even with magnification my eyes aren’t good enough to tell what going on here—email me if you know about this material

Turns out it's hollow like a geode and the holes on the front and back connect

Approx weight each coaster weighs around 4

Calcite with brown-red intersecting pyramid druzy Spider jasper if it gets knocked overLocale: Santa Eulalia, Chihuahua, Mexico Approx dimensions: 5 x 2. 5 x . 75" Approx weight: 112g This calcite specimen from Santa Eulalia is a lovely deep red color from hematite (iron oxide) inclusions. An irregular shaped piece of matrix is covered in glittering red calcite druzy on both sides, and in cracks on the sides. Studied closely, this piece has well formed crystals with beautiful geometry. The druzy is in fact composed of small intersecting