Marin Mineral
Mixed Minerals
November 25, 2014  ·  9 specimens

TZ421 - Scapolite  sold

Morogoro, Tanzania
Small Cabinet - 7.5 x 2.1 x 2 cm



(click on an image to enlarge)

Scapolite Scapolite Scapolite

Gem quality etched Scapolite crystal. Rich golden color and nearly flawless internally. This is from old gem rough stock of approximately 20 years ago. Undamaged floater crystal. Weighs 56 grams.


TZ422 - Scapolite  sold

Morogoro, Tanzania
Miniature - 4.7 x 2.0 x 1.5 cm



(click on an image to enlarge)

Scapolite Scapolite Scapolite

Gem quality etched Scapolite crystal. Rich golden color and nearly flawless internally. This is from old gem rough stock of approximately 20 years ago. Undamaged though contacted at base. Weighs 26.7 grams.


TZ423 - Scapolite  sold

Morogoro, Tanzania
Miniature - 3.6 x 2.2 x 2.1 cm



(click on an image to enlarge)

Scapolite Scapolite Scapolite

Gem quality etched Scapolite crystal. Rich golden color and nearly flawless internally. This is from old gem rough stock of approximately 20 years ago. Weighs 32.7 grams.


TZ424 - Alexandrite  sold

Lake Manyara, Tanzania
Thumbnail - 2.5 x 1.1 x 0.7 cm



(click on an image to enlarge)

Alexandrite Alexandrite

Double terminated Alexandrite crystal with a color change from green to purple in indoor/outdoor lighting. Although it is only lightly translucent, what makes this crystal special is a wonderful, shimmering chatoyancy that can be observed on the prism faces when you turn back and forth under lighting. Weighs 6.7 grams.


TZ427 - Alexandrite  sold

Lake Manyara, Tanzania
Thumbnail - 0.8 x 0.6 x 0.5 cm



(click on an image to enlarge)

Alexandrite Alexandrite

Double terminated Alexandrite crystal with sixling twinning evident on the termination faces. Color change from green to purple in indoor/outdoor lighting. Although it is only lightly translucent, what makes this crystal special is a wonderful, shimmering chatoyancy that can be observed on the prism faces when you turn back and forth under lighting.


TZ430 - Alexandrite  sold

Lake Manyara, Tanzania
Thumbnail - 1.7 x 1 x 0.7 cm



(click on an image to enlarge)

Alexandrite Alexandrite

Double-terminated Alexandrite crystal. Color change from green to purple in indoor/outdoor lighting. Although it is only lightly translucent, what makes this crystal special is a wonderful, shimmering chatoyancy that can be observed on the prism faces when you turn back and forth under lighting.


TZ433 - Spinel  sold

Mahenge, Morogoro Region, Tanzania
Thumbnail - 2 x 1.9 x 1.6 cm



(click on an image to enlarge)

Spinel Spinel

Complete octahedral crystal of red spinel, though only about half the crystal is exposed. Nicely gemmy at the tip.


E125 - Diaspore  sold

Aydun, Mugula, Turkey
Thumbnail - 3 x 2 x 1.0 cm



(click on an image to enlarge)

Diaspore Diaspore

Terminated single Diaspore crystal with attached mica. Highly transparent in areas, in fact most of the crystal is facet grade.  A rarity now, and undamaged. 


M106 - Fluorite with Galena  sold

Naica, Chihuahua, Mexico
Small Cabinet - 6.5 x 5 x 3.5 cm



(click on an image to enlarge)

Fluorite with Galena Fluorite with Galena Fluorite with Galena

Complex light green Fluorite crystal on matrix with Galena. Undamaged.


« All updates
©2026 Marin Mineral