The test (hard shell) is clearly bilateral and there is a deep anterior groove to take in water containing organic particles to the mouth

It measures 60x29x28 mm

Dimensions:  29x29x18 mm / 1

Would make a beautiful addition to any new or existing collection

Diopside Crystal Cluster | 31 grams | Biotite Mica Micro | Otter Lake, Québec, Canada Mesosiderite The test (hard shell) isHere's a beautiful cluster of glassy green diopside crystals from Otter Lake, Qubec. The specimen is made up of about six inter grown diopside crystals with some small attached biotite mica crystals. The largest diopside is 2. 5cm across x 3. 5cm. This is a floater specimen and all crystals are complete. The specimen is in excellent condition. The diopside crystals are prismatic habit with complex terminations. It has a nice luster and lovely green