Marin Mineral
Mixed Minerals
August 26, 2024  ·  12 specimens

P422 - Amethyst  sold

Las Vigas, Vera Cruz, Mexico
Large Cabinet - 20 x 15 x 7.0 cm



(click on an image to enlarge)

Amethyst Amethyst Amethyst

Large, flat rock matrix covered by purple Amethyst crystals. This a big and showy Vera Cruz specimen with a lot going for it - deep purple colored crystals, good coverage, and importantly, green Epidote coating the matrix which provides excellent color contrast. The crystals are undamaged, with only a couple missing crystals down on the lower right edge.


P423 - Actinolite   $90  available

Kangwa, Dodoma, Tanzania
Miniature - 5 x 3 x 1.8 cm



(click on an image to enlarge)

Actinolite Actinolite Actinolite Actinolite

Actinolite cluster atop a larger Actinolite crystal from a new find in Tanzania. A larger, deep green crystal hosts a cluster of smaller, doubly-terminated crystals at the top.


P424 - Wurtzite  sold

Merelani Hills, Arusha, Tanzania
Thumbnail - 1.4 x 1.3 x 0.9 cm



(click on an image to enlarge)

Wurtzite Wurtzite Wurtzite Wurtzite

Translucent to transparent red/orange single Wurtzite crystal.


P425 - Sphalerite   $350  available

Merelani Hills, Arusha, Tanzania
Thumbnail - 2.1 x 1.8 x 1.5 cm



(click on an image to enlarge)

Sphalerite Sphalerite Sphalerite Sphalerite Sphalerite

Well formed single crystal of translucent to transparent red/orange Sphalerite.

P426 - Boleite  sold

Amelia Mine, Santa Rosalia, Baja, Mexico
Thumbnail - 0.6 x 0.6 x 0.5 cm



(click on an image to enlarge)

Boleite Boleite Boleite

Single cubic crystal of Boleite. This one has good luster for the species and smooth, flat faces. Small bits of white Anglesite are attached.


P428 - Tanzanite  sold

Merelani Hills, Arusha, Tanzania
Thumbnail - 1 x 0.6 x 0.2 cm



(click on an image to enlarge)

Tanzanite Tanzanite Tanzanite

Single, gemmy pink Tanzanite crystal. Though small, it has excellent form, transparency, and the color is a very rich pink in the narrow direction. Undamaged and water-clear.


P429 - Tanzanite  sold

Merelani Hills, Arusha, Tanzania
Thumbnail - 1.1 x 0.8 x 0.3 cm



(click on an image to enlarge)

Tanzanite Tanzanite Tanzanite

Bi-colored pink/purple Tanzanite crystal with a mitten-like form. Undamaged and gem-like.


P430 - Tanzanite  sold

Merelani Hills, Arusha, Tanzania
Thumbnail - 2.8 x 1.3 x 1.1 cm



(click on an image to enlarge)

Tanzanite Tanzanite Tanzanite Tanzanite Tanzanite

Stunning, glassy Tanzanite crystal with outstanding transparency and luster. The front face shows purple with a yellow tip. When viewed from the side, it's yellow/blue. Looking down the top (C-axis), it's yellowish with hints of orange. Beautiful water-clear crystal in near pristine condition with only a chip of the back of the small side crystal, otherwise undamaged. This is a fantastic gem crystal that won't dissappoint!


P202 - Rhodochrosite  sold

Uchucchacua Mine, Oyon Prov., Peru
Small Cabinet - 7 x 4.5 x 4 cm



(click on an image to enlarge)

Rhodochrosite Rhodochrosite Rhodochrosite Rhodochrosite

Glassy cherry-red Rhodochrosite crystals in a vug in dark black rock matrix. Quality undamaged crystals with transparency. An old piece held by a Peruvian miner and shipped to me recently. Saw cut on back.


P431 - Kammererite  sold

Kop Krom Mine, Kop Daglari, East Anatolia, Turkey
Miniature - 3.5 x 2.5 x 1.8 cm



(click on an image to enlarge)

Kammererite Kammererite Kammererite Kammererite

Showy specimen of the chromium rich Clinochlore varietal known as Kammererite from the world's best locality for the species. Sparkling good sized crystals covering the front face. This locality is long closed and specimens are now hard to come by.


P432 - Barrerite   $225  available

Rocky Pass, near Kuiu Island, Alaska, USA
Cabinet - 9.5 x 7 x 4 cm



(click on an image to enlarge)

Barrerite Barrerite Barrerite Barrerite

Pearly white crystals of Barrerite on matrix. Barrerite is a rare member of the Zeolite group of minerals. Rocky Pass is a small islet just off the coast of Kuiu Island.


P433 - Smithsonite   $9,500  available

Choix, Sinaloa, Mexico
Cabinet - 14 x 11 x 4.5 cm



(click on an image to enlarge)

Smithsonite Smithsonite Smithsonite Smithsonite

Large, silky pink Smithsonite from old finds in Mexico. This is an exquisite example with excellent color and large rounded formations of translucent Smithsonite.

« All updates
©2026 Marin Mineral