Stromatolite: Conophytum basalticum
Cut and polished horizontal slice of a stromatolite cone, measuring 10″ x 8″ x 1/2″ thick. Cone shape and margin of the stromatolite colony is evident. Small areas of druzy quartz are present in some of the small voids. Individual growth rings of the stromatolite mats are clearly visible; resembling the growth rings seen in trees. Specimen has striking color and detail!