ncat OS003 Amethyst, Andilamena Quartz Quarries, Andranotokana Massif, Andilamena, Alaotra-Mangoro, Madagascar
Japan Law Twin 19x15x8mm. Click on the image below for a higher resolution version.
Japan Law Twin 19x15x8mm. Click on the image below for a higher resolution version.
Pale greenish-yellow crust of cerianite on white quartz. Ex Gerald Spinks Collection. Width of view 11.5mm. Stack of 44 images. Click on the image below for a higher resolution version.
A tiny fragment of this rare sheet silicate. Type Locality. Ex Gerald Spinks Collection. Width of view 5.75mm. Stack of 16 images. Click on the image below for a higher resolution version.
Yellow to greenish to black sand-sized grains of stibiotantalite in a small glass vial with a metal cap. The cap is stamped with Rudolph Flume Berlin. The vial is 20mm long.
Tiny piece in a capsule. Type Locality.
Yellow prismatic crystals. Previously known as uranophane-β, now parauranophane. Width of view 5.75mm. Stack of 165 images. Click on the image below for a higher resolution version.
Platy yellow crystals. Width of specimen 30mm. Click on the image below for a higher resolution version.
Purple octahedral fluorite inclusions in quartz. Width of view 5mm. Stack of 80 photos. Ex Jo Price Collection. Click on the image below for a higher resolution version.
Superb purple-pink crystals. Width of view 11.5mm. Stack of 108 images. Click on the image below for a higher resolution version.
Copal from this locality is about 2 million years old. This piece is ~30x30x10mm, is polished, and fluoresces bluish-white. It holds four beetles and a couple of smaller flies. Width of view 11mm. Stack of 70 images. Click on the image below for a higher resolution version.