Marin Mineral
Mixed Minerals
May 15, 2019  ·  25 specimens

J673 - Cinnabar   $350  available

Yanwuping Mine, Tongren, China
Miniature - 5.0 x 4 x 2.0 cm



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Cinnabar Cinnabar Cinnabar

Large twinned Cinnabar crystals on white Dolomite crystals. There are 3 crystals here, one very large crystal 1.9cm, with a 1.3cm crystal attached to one side. Near the base is the the third crystal, 7mm in size. All are undamaged.


J661 - Quartz  sold

2nd Sovetskii Mine, Dal'Negorsk, Far-Eastern Region, Russia
Miniature - 5 x 4 x 1.5 cm



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Quartz Quartz Quartz Quartz

Cluster of slender Quartz crystals with a distinctive red/orange color.


J648 - Legrandite  sold

Mina Oujela, Mapimi, Durango, Mexico
Thumbnail - 1.7 x 1 x 0.8 cm



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Legrandite Legrandite Legrandite

Spray formation of golden Legrandite crystals. Good all around, rare.


J743 - Chalcocite  sold

Flambeau Mine, Ladysmith, Wisconsin, USA
Thumbnail - 2.2 x 2 x 1.5 cm



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Chalcocite Chalcocite Chalcocite

Cluster of well formed Chalcocite crystals with an irridecent blue patina. Undamaged and complete all around. Beautiful thumbnail specimen from this long closed locality that has produced some of my favorite chalcocite specimens.


J752 - Stannite  sold

San Jose Mine, Oruro, Bolivia
Thumbnail - 1.5 x 1.3 x 1.2 cm



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Stannite Stannite Stannite

Superb lustrous metallic crystals of the rare mineral Stannite from Bolivia. Stannite is a rare sulfide of copper, iron, and tin. Zinc commonly occurs with the iron and trace germanium may be present. Slightly irridescent.


J751 - Stannite  sold

San Jose Mine, Oruro, Bolivia
Thumbnail - 2 x 1.5 x 1.2 cm



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Stannite Stannite Stannite

Superb lustrous metallic crystals of the rare mineral Stannite from Bolivia. Stannite is a rare sulfide of copper, iron, and tin. Zinc commonly occurs with the iron and trace germanium may be present. Slightly irridescent, well crystallized all around.


J755 - Pyrargyrite   $450  available

Peru
Thumbnail - 2 x 1.5 x 1.5 cm



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Pyrargyrite Pyrargyrite Pyrargyrite

Cluster of dark red Pyrargyrite crystals. Main crystal is complete and 1.8cm wide.


J770 - Fluorite on Quartz  sold

China
Cabinet - 11 x 9 x 4 cm



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Fluorite on Quartz Fluorite on Quartz Fluorite on Quartz Fluorite on Quartz

Translucent green octahedrons of Fluorite on a Quartz crystal coated matrix. This is a floater well crystallized on all sides with no points of contact. In exceelent condition with damage to one crystal on the back and a small cleave on one crystal visible from the front, otherwise all are perfect, including the Quartz.


J714 - Tsavorite  sold

Merelani Hills, Arusha, Tanzania
Thumbnail - 2 x 1.4 x 1 cm



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Tsavorite Tsavorite Tsavorite

Cluster of bright green Tsavorite crystals. The specimen is composed of Tsavorites of the elongated/faden habit with a number groups all intergrown together. Crystallized all around.


J721 - Tsavorite  sold

Merelani Hills, Arusha, Tanzania
Thumbnail - 1.4 x 1.2 x 0.7 cm



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Tsavorite Tsavorite Tsavorite

Gemmy Tsavorite crystals with good color.


J556 - Fluorite  sold

Okaruso, Namibia
Cabinet - 9.7 x 7.2 x 3.5 cm



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Fluorite Fluorite Fluorite

Gemmy green and purple Fluorite cubes with good surface luster. Beautiful transition of color with transparent green crystals showing light purple edges. Very good condition all around other than a couple of minor chips here and there.


J551 - Franckeite  sold

San Jose Mine, Cercado Province, Oruro City, Oruro Dept., Bolivia
Miniature - 4.6 x 4.3 x 2.3 cm



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Franckeite Franckeite Franckeite

Radiating needles of Franckeite crystals intergrown into a large, massive specimen. Franckeite is a rare sulfosalt consisting of lead, tin, iron, and antimony. An excellent example with fine radiating crystals.


J546 - Franckeite (Var: Potosíite) with Franckeite  sold

San Jose Mine, Cercado Province, Oruro City, Oruro Dept., Bolivia
Miniature - 3.8 x 3.1 x 2.5 cm



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Franckeite (Var: Potosíite) with Franckeite Franckeite (Var: Potosíite) with Franckeite Franckeite (Var: Potosíite) with Franckeite

A fine example of the rare sulfosalt species, Franckeite, with radiating spear-shaped crystals and what was formerly known as Potosiite (now discredited). Potosiite is the variety of Franckeite that is tin-poor in its chemistry with crystals more tabular in shape. A rare specimen.


J589 - Vesuvianite  sold

Jeffrey Mine, Asbestos, Quebec, Canada
Miniature - 4.0 x 2.8 x 2.6 cm



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Vesuvianite Vesuvianite Vesuvianite Vesuvianite Vesuvianite

A good sized matrix Vesuvianite specimen, one of the best color combination examples for this type. The matrix is purple mangan Vesuvianite covered by an outer layer of yellow/green Vesuvianite crystals. Largest single crystal in the group is just over 2cm in length. The mine is now closed.


J624 - Anatase on Albite with Quartz  sold

Kharan, Balochistan, Pakistan
Small Cabinet - 7.0 x 5.8 x 3.8 cm



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Anatase on Albite with Quartz Anatase on Albite with Quartz Anatase on Albite with Quartz

Three Anatase crystals seen on white Albite and Quartz covered matrix. The largest single Anatase crystal is 9mm across. All three crystals are undamaged and translucent at the tips.


J484 - Prehnite  sold

Merelani Hills, Arusha, Tanzania
Miniature - 4.7 x 3.1 x 2.6 cm



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Prehnite Prehnite Prehnite

Well crystallized Prehnite from recent finds at the Merelani Tanzanite mines. Highly translucent with a greenish yellow color with large, chunky crystals. These recent Prehnites are the best ever found at the locality.


J481 - Prehnite  sold

Merelani Hills, Arusha, Tanzania
Small Cabinet - 5.4 x 5.0 x 3.5 cm



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Prehnite Prehnite Prehnite Prehnite Prehnite

Gemmy bright yellow-green Prehnite in a spherical grouping with sharp ridges of crystals. A small amount of silver-gray Graphite can be seen on one side. There is also an inclusion of blue, incomplete Tanzanite crystals. The quality of the Prehnite is superb with big crystals extending out of the main group with good luster and very translucent. Only minor contact and cleaving in a few areas.


J485 - Prehnite  sold

Merelani Hills, Arusha, Tanzania
Small Cabinet - 5.3 x 5.0 x 2.5 cm



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Prehnite Prehnite Prehnite

Well crystallized Prehnite from recent finds at the Merelani Tanzanite mines. Highly translucent with a greenish yellow color with a crystal habit of parallel bladed/tabular crystals which are a new style (at least to me) not seen until this year. These recent Prehnites are the best ever found at the locality.


J513 - Prehnite  sold

Merelani Hills, Arusha, Tanzania
Miniature - 3.3 x 2.5 x 2.4 cm



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Prehnite Prehnite Prehnite

Well crystallized Prehnite from recent finds at the Merelani Tanzanite mines. Highly translucent with a greenish yellow color. This one is an exceptional small miniature with very stout, thick crystls forming a 3cm wide radial grouping. No damage to the crystals. These recent Prehnites are the best ever found at the locality.


J536 - Prehnite  sold

Merelani Hills, Arusha, Tanzania
Small Cabinet - 5.6 x 4.7 x 2.5 cm



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Prehnite Prehnite Prehnite

Gemmy bright yellow-green Prehnite cluster with sharp ridges of crystals. A small amount of silver-gray Graphite can be seen on the bottom. The quality of the Prehnite is superb with big crystals forming an excellent quality specimen with good luster and very translucent.


J609 - Copper  sold

Broken Hill, New South Wales, Australia
Small Cabinet - 7.0 x 6.0 x 5.0 cm



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Copper Copper Copper

This specimen consists of almost 100% green Malachite coated dendritic Copper. It has an interesting sculptural form that still shows a number of Quartz matrix fragments that appear to be floating within the mass of copper.


J241 - Spinel  sold

Mahenge, Morogoro, Tanzania
Thumbnail - 1.6 x 1.4 x 1.2 cm



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Spinel Spinel Spinel

Complete octahedral pink Spinel crystal with good rich color. No damage and only micro chipping.


J247 - Spinel  sold

Mahenge, Morogoro, Tanzania
Thumbnail - 1.7 x 1.5 x 1.3 cm



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Spinel Spinel Spinel

Complete octahedral red Spinel crystal with good color. Damage to one corner. Rich gemmy areas within, especially the tip.


J249 - Spinel  sold

Mahenge, Morogoro, Tanzania
Thumbnail - 2.1 x 2.0 x 1.8 cm



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Spinel Spinel Spinel

Complete octahedral red Spinel crystal with good color. Chipping on two corners. Rich gemmy areas within, especially the tip.


J622 - Brucite   $240  available

Killa Saifullah, Balochistan, Pakistan
Small Cabinet - 7.0 x 5.0 x 2.7 cm



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Brucite Brucite Brucite

Large, solid 'pinwheel' radial mass of yellow Brucite on matrix. This is an uncommon example well crystallized all around, characteristic of open pocket growth and not growth in tight, contacted seams as are most. Translucent and thick with no damage.

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