Zebra calcite rough stones from Mexico. 

Although the black and white layers in zebra calcite make this a distinctive and fascinating stone, these patterns are relatively common and can be found in rocks and minerals around the world. 

Several websites states zebra calcite is a new find from Mexico.  Although it is mostly coming from Mexico, this layered type of calcite has been known and studied extensively by geologists for many years.

It has however only recently been discovered by the metaphysical communinity.

It's also being promoted as a relatively hard stone that's safe to soak in water.  Both statements are untrue.   

Like all types of calcite zebra calcite grades 3 on Mohs scale of hardness.  This scale is used to grade rocks and minerals according to how difficult it is to scratch them with another material.  Stones are graded 1 to 10 with 1 being the softest and 10 the hardest.

Zebra calcite should never be submerged in water and ideally should not even be allowed to get wet.  When exposed to warmer water calcite precipitates and in colder water it dissolves.

Those who use crystals for their healing properties often cleanse them in water.  This can damage certain minerals.

These zebra calcite rough stones make striking display pieces.  They have been coated with a fine resin which gives them some protection.

Prices are calculated according to the weight of each zebra calcite stone.