Marin Mineral Company - Selected Specimens

Selected Specimens

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J146 - Agate after Shell $ 220
Dakhla area, Western Sahara, Morocco
small cabinet - 5.4 x 3 x 2.6 cm

(click on an image to enlarge)
Agate after Shell from Dakhla area, Western Sahara, Morocco [db_pics/pics/J146a.jpg]

Agate after Shell from Dakhla area, Western Sahara, Morocco [db_pics/pics/J146b.jpg]

Agate after Shell from Dakhla area, Western Sahara, Morocco [db_pics/pics/J146c.jpg]

Fossil shell that has been replaced by translucent golden agate. These are found on the surface, having weathered out of the surrounding rock formations. There are about 40 different species found at this deposit. Although they could have weathered out of different formations, they are all believed to be Eocene in age. Most are broken pieces and weathered and perfectly preserved examples such as this are uncommon, probably less than 5 percent of what is found. Fine quality large specimen.

J147 - Agate after Shell $ 150
Dakhla area, Western Sahara, Morocco
small cabinet - 5.2 x 3 x 2.5 cm

(click on an image to enlarge)
Agate after Shell from Dakhla area, Western Sahara, Morocco [db_pics/pics/J147a.jpg]

Agate after Shell from Dakhla area, Western Sahara, Morocco [db_pics/pics/J147b.jpg]

Agate after Shell from Dakhla area, Western Sahara, Morocco [db_pics/pics/J147c.jpg]

J154 - Spinel $ 150
Mahenge, Morogoro, Tanzania
thumbnail - 1.7 x 1.5 x 1.1 cm

(click on an image to enlarge)
Spinel from Mahenge, Morogoro, Tanzania [db_pics/pics/J154a.jpg]

Spinel from Mahenge, Morogoro, Tanzania [db_pics/pics/J154b.jpg]

Spinel from Mahenge, Morogoro, Tanzania [db_pics/pics/J154c.jpg]

Octahedral pink Spinel crystal. Complete crystal with good luster. A tiny chip on one point, otherwise undamaged.

J156 - Spinel $ 150
Mahenge, Morogoro, Tanzania
thumbnail - 2 x 1.7 x 1.2 cm

(click on an image to enlarge)
Spinel from Mahenge, Morogoro, Tanzania [db_pics/pics/J156a.jpg]

Spinel from Mahenge, Morogoro, Tanzania [db_pics/pics/J156b.jpg]

Spinel from Mahenge, Morogoro, Tanzania [db_pics/pics/J156c.jpg]

Complete octahedral pink Spinel crystal with good color. Complete all around with some natural etching/edge wear.

J157 - Spinel $ 120
Ruaha, near Mahenge, Morogoro, Tanzania
thumbnail - 1.6 x 1.5 x 1.5 cm

(click on an image to enlarge)
Spinel from Ruaha, near Mahenge, Morogoro, Tanzania [db_pics/pics/J157a.jpg]

Spinel from Ruaha, near Mahenge, Morogoro, Tanzania [db_pics/pics/J157b.jpg]

Spinel from Ruaha, near Mahenge, Morogoro, Tanzania [db_pics/pics/J157c.jpg]

Octahedral purple Spinel crystal from a new find. Complete all around and undamaged. Good luster and translucency.

J158 - Spinel $ 190
Ruaha, near Mahenge, Morogoro, Tanzania
thumbnail - 2.6 x 1.9 x 1.6 cm

(click on an image to enlarge)
Spinel from Ruaha, near Mahenge, Morogoro, Tanzania [db_pics/pics/J158a.jpg]

Spinel from Ruaha, near Mahenge, Morogoro, Tanzania [db_pics/pics/J158b.jpg]

Spinel from Ruaha, near Mahenge, Morogoro, Tanzania [db_pics/pics/J158c.jpg]

Spinel from Ruaha, near Mahenge, Morogoro, Tanzania [db_pics/pics/j158d.jpg]

Spinel from Ruaha, near Mahenge, Morogoro, Tanzania [db_pics/pics/j158e.jpg]

Octahedral purple Spinel crystals from a new find. Complete all around with minor edge wear on one edge, otherwise undamaged. Good luster and translucency.

J164 - Euchroite $ 250
Svatoduska, near Lubietova, Slovakia
miniature - 3.5 x 2.3 x 2 cm

(click on an image to enlarge)
Euchroite from Svatoduska, near Lubietova, Slovakia [db_pics/pics/J164a.jpg]

Euchroite from Svatoduska, near Lubietova, Slovakia [db_pics/pics/J164b.jpg]

Euchroite from Svatoduska, near Lubietova, Slovakia [db_pics/pics/J164c.jpg]

Deep green Euchroite crystals to 2-3mm that contrast well against the dark brown matrix. Good crystals that are fairly well isolated.

C675 - Cuprite on Chrysocolla $ 1200
Mashamba West Mine, Katanga, Congo
cabinet - 12 x 8 x 4 cm

(click on an image to enlarge)
Cuprite on Chrysocolla from Mashamba West Mine, Katanga, Congo [db_pics/pics/c675a.jpg]

Cuprite on Chrysocolla from Mashamba West Mine, Katanga, Congo [db_pics/pics/c675b.jpg]

Cuprite on Chrysocolla from Mashamba West Mine, Katanga, Congo [db_pics/pics/c675c.jpg]

Cuprite on Chrysocolla from Mashamba West Mine, Katanga, Congo [db_pics/pics/c675d.jpg]

Cuprite crystals to 1.3cm on an uncommonly wide, flat Chrysocolla covered matrix. These came out years ago and are among my favorite Cuprite specimens as the Chrysocolla really sets off the Cuprite crystals. Crystals are undamaged with many more crystals present that are completely covered by the Chrysocolla. Areas of fibrous Malachite crystals enhance the look. Undamaged.

C677 - Cuprite on Chrysocolla $ 500
Mashamba West Mine, Katanga, Congo
small cabinet - 8 x 6.5 x 4 cm

(click on an image to enlarge)
Cuprite on Chrysocolla from Mashamba West Mine, Katanga, Congo [db_pics/pics/c677a.jpg]

Cuprite on Chrysocolla from Mashamba West Mine, Katanga, Congo [db_pics/pics/c677b.jpg]

Cuprite on Chrysocolla from Mashamba West Mine, Katanga, Congo [db_pics/pics/c677c.jpg]

Cuprite crystals to 1.9cm on a flat Chrysocolla covered matrix. These came out years ago and are among my favorite Cuprite specimens as the Chrysocolla really sets off the Cuprite crystals. Main crystal is sharp with just slight edge chipping in one area. There are also many more crystals present (can be seen along edges) that are completely covered by the Chrysocolla and could be exposed. Areas of fibrous Malachite crystals enhance the look.

C683 - Thaumasite $ 1500
N'Chwanning Mine, Kuruman, South Africa
miniature - 3.4 x 3 x 1.3 cm

(click on an image to enlarge)
Thaumasite from N'Chwanning Mine, Kuruman, South Africa [db_pics/pics/c683a.jpg]

Thaumasite from N'Chwanning Mine, Kuruman, South Africa [db_pics/pics/c683b.jpg]

Thaumasite from N'Chwanning Mine, Kuruman, South Africa [db_pics/pics/c683c.jpg]

Thaumasite from N'Chwanning Mine, Kuruman, South Africa [db_pics/pics/c683d.jpg]

Thaumasite is a rare mineral in the Ettringite group, the best were found at the N'Chwanning. This is a rare matrix specimen - you used to be able to find small single crystals but now even those are hard to find. Matrix specimens were always uncommon, and I have only ever had one before, a similar piece to this one that I paid a similar price to Katherine Woest about 15 years ago. Crystals are a transparent yellow and reach 5mm in diameter. White tufts of Xonotlite are dispersed between the Thaumasite crystals.

C688 - Hausmanite $ 900
N'Chwanning II Mine, Kuruman, South Africa
small cabinet - 9 x 5.5 x 3 cm

(click on an image to enlarge)
Hausmanite from N'Chwanning II Mine, Kuruman, South Africa [db_pics/pics/c688a.jpg]

Hausmanite from N'Chwanning II Mine, Kuruman, South Africa [db_pics/pics/c688b.jpg]

Hausmanite from N'Chwanning II Mine, Kuruman, South Africa [db_pics/pics/c688c.jpg]

Hausmanite from N'Chwanning II Mine, Kuruman, South Africa [db_pics/pics/c688d.jpg]

Matrix covered by Andradite crystals in turn coated by numerous well formed Hausmanite crystals. Clean and undamaged. Comes with a Wendel Minerals label that indicates it was formerly part of the Mayer collection.

J180 - Apatite $ 200
Namalulu, Tanzania
miniature - 3.3 x 3.2 x 2.2 cm

(click on an image to enlarge)
Apatite from Namalulu, Tanzania [db_pics/pics/J180a.jpg]

Apatite from Namalulu, Tanzania [db_pics/pics/J180b.jpg]

Apatite from Namalulu, Tanzania [db_pics/pics/J180c.jpg]

Large, chunky single Apatite crystal with a good blue/green color. Complete all around and translucent with a 'wet' luster. Undamaged with some natural indentaions from other crystals.

J181 - Apatite $ 140
Namalulu, Tanzania
miniature - 3.2 x 3 x 2.1 cm

(click on an image to enlarge)
Apatite from Namalulu, Tanzania [db_pics/pics/J181a.jpg]

Apatite from Namalulu, Tanzania [db_pics/pics/J181b.jpg]

Apatite from Namalulu, Tanzania [db_pics/pics/J181c.jpg]

Large, chunky single Apatite crystal with a good blue/green color. Complete all around and translucent with a 'wet' luster. Slight chipping but relatively undamaged.

J186 - Apatite $ 80
Namalulu, Tanzania
thumbnail - 1.7 x 1.4 x 1.1 cm

(click on an image to enlarge)
Apatite from Namalulu, Tanzania [db_pics/pics/J186a.jpg]

Apatite from Namalulu, Tanzania [db_pics/pics/J186b.jpg]

Apatite from Namalulu, Tanzania [db_pics/pics/J186c.jpg]

Single Apatite crystal with a good blue/green color. Complete all around and translucent with a 'wet' luster and areas of transparency. Some chipping present but relatively undamaged.

J193 - Apatite $ 120
Namalulu, Tanzania
miniature - 3.2 x 1.8 x 1.5 cm

(click on an image to enlarge)
Apatite from Namalulu, Tanzania [db_pics/pics/J193a.jpg]

Apatite from Namalulu, Tanzania [db_pics/pics/J193b.jpg]

Apatite from Namalulu, Tanzania [db_pics/pics/J193c.jpg]

Single Apatite crystal with a good blue/green color. Complete all around and translucent with a 'wet' luster. Some matrix attached to one side, but undamaged. (click on a page number to go to that page:)

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