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More like this: calcium deposits, chrysanthemums and stones.
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Steph Orris
Steph Orris • 1 year ago

Unusually perfect specimen of chrysanthemum rock. This close-up shows the 1 1/2 pound stone with a flower-like pattern that is is made of celestite and calcium deposits on black limestone.

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"Chrysanthemum rock" -- celestite crystals in a limestone matrix.

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minerals & gems

Botryoidal minerals form when many nearby nuclei, specks of sand, dust, or other particles, are present. Layers of mineral material are deposited radially around the nuclei. As more material is deposited, the spheres grow larger and eventually overlap with those that are nearby. These nearby spheres are then fused together to form the botryoidal cluster.

Petoskey stones ~ fossilized coral that lived 350 million years ago - the rocks rounded in the surf along the shore of Lake Michigan near Petosky, Michigan For Cheri..maybe next year you will find one !