Andradite (demantoid) - Mineral specimens search results

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Mineral specimens search results for [ Andradite (demantoid) ]

E66FD2: Andradite (variety demantoid chromium rich)

The Italian Demantoids are really good, but this one does not miss the mark by far, transparent, aerial on the matrix of white calcite.
Namgar Mine, Usakos-Omaruru, Erongo Namibia
Specimen size: 4 × 3.5 × 2.5 cm = 1.57” × 1.38” × 0.98”

NGT67AO3: Andradite (variety demantoid)

Andradite crystals (demantoid variety) with very well defined trapezohedron and rhombododecahedron forms, translucent, with a bright luster and an intense and deep green color, on matrix. Worth noting is its abundance of crystals since these Iranian demantoids usually occur as isolated crystals.
Belqeys Mountain, Takab, West Azerbaijan Province Iran
Specimen size: 6 × 4.2 × 3.8 cm = 2.36” × 1.65” × 1.50”

Main crystal size: 1.2 × 0.8 cm = 0.47” × 0.31”

EV57N8: Andradite (variety demantoid)

A novelty in Ste. Marie 2009. Group of crystals with a dominant dodecahedron and the faces of a trapezohedron on the edges. The crystals, on matrix, are very clear and bright, have a good green color and a curious flattened shape. The locality was not well known until recently, and habit of the Demantoid is really unusual.
This specimen was published in the magazine ‘Le Règne Minéral’ number 90, page 42.
Antetezambato outcrop, Antetezambato, Maherivaratra Commune, Ambanja District, Antsiranana Province Madagascar (05-06/2009)
Specimen size: 4.4 × 3.6 × 2.8 cm = 1.73” × 1.42” × 1.10”

EQ66N8: Andradite (variety demantoid)

A novelty in Ste. Marie 2009. Group of crystals with a dominant dodecahedron and the faces of a trapezohedron on the edges. The crystals, on matrix, are very clear and bright, have a good green color and a curious flattened shape. The locality was not well known until recently, and habit of the Demantoid is really unusual.
This specimen was published in the magazine ‘Le Règne Minéral’ number 90, page 42.
Antetezambato outcrop, Antetezambato, Maherivaratra Commune, Ambanja District, Antsiranana Province Madagascar (05-06/2009)
Specimen size: 2.5 × 2.3 × 1.6 cm = 0.98” × 0.91” × 0.63”

Main crystal size: 1 × 0.7 cm = 0.39” × 0.28”

TB31Q0: Andradite (variety demantoid)

Two crystals on matrix, one of them clearly dominant. They are very rich in faces, with the dominant forms of the dodecahedron and the trapezohedron. With an intense green color, very bright and transparent.
Antetezambato outcrop, Antetezambato, Maherivaratra Commune, Ambanja District, Antsiranana Province Madagascar (11-12/2009)
Specimen size: 4.2 × 3.2 × 1.4 cm = 1.65” × 1.26” × 0.55”

TK52S9: Andradite (variety demantoid)

Transparent complex crystals of intense green color, on matrix. They have dominant forms of the trapezohedron and the dodecahedron, but they also show cube faces, small but perfectly visible. Some of the crystals have curious deformations, to the degree that one of them is almost completely flattened.
Antetezambato outcrop, Antetezambato, Maherivaratra Commune, Ambanja District, Antsiranana Province Madagascar (08/2009)
Specimen size: 7.3 × 6.3 × 4.8 cm = 2.87” × 2.48” × 1.89”

Main crystal size: 1.8 × 1.2 cm = 0.71” × 0.47”

GZ87R0: Andradite (variety demantoid)

Group of crystals that combine the forms of a dominant trapezohedron with the dodecahedron. The crystals have a very deep color, green with slightly brownish shades. They are very bright and are partially coating a matrix of volcanic rock. The locality is very unusual for the species.
Cerro de la Concordia, Piedra Parada (Las Vigas), Municipio Tatatila, Veracruz (Veracruz de Ignacio de la Llave) Mexico
Specimen size: 8.2 × 6 × 4.9 cm = 3.23” × 2.36” × 1.93”

EC36W8: Andradite (variety demantoid) with Amphibole

Isolated and clustered crystals that show the dominant form of the dodecahedron beveled by the trapezohedron. They have an excellent transparency and luster and are a very deep green color that contrasts with the rocky matrix partially coated by a white, indeterminate amphibole. The species has been analyzed and we’ll send a copy of the analysis to the buyer.
Jeffrey Mine, ↓200 m, Asbestos, Les Sources RCM, Estrie, Québec Canada (25/04/2009)
Specimen size: 6.7 × 5 × 3.9 cm = 2.64” × 1.97” × 1.54”

Main crystal size: 0.4 × 0.4 cm = 0.16” × 0.16”

ET46Q0: Andradite (variety demantoid) with Amphibole

Isolated and clustered crystals that have the dominant form of the dodecahedron modified by the trapezohedron. They have an excellent transparency and luster and are a very deep green color that contrasts with a matrix of a white, indeterminate amphibole. The species has been properly analyzed.
Jeffrey Mine, ↓200 m, Asbestos, Les Sources RCM, Estrie, Québec Canada (25/04/2009)
Specimen size: 4.5 × 4 × 2.9 cm = 1.77” × 1.57” × 1.14”

TY76N8: Andradite (variety demantoid) with Amphibole

A novelty in Ste. Marie 2009. The crystals combine a dominant dodecahedron with the trapezohedron. The crystals have a very deep green color, excellent transparency and luster, contrasting with a white amphibole matrix with Serpentine. The species has been accurately analyzed.
Jeffrey Mine, ↓200 m, Asbestos, Les Sources RCM, Estrie, Québec Canada (25/04/2009)
Specimen size: 4.9 × 4.8 × 2.2 cm = 1.93” × 1.89” × 0.87”

Main crystal size: 0.4 × 0.4 cm = 0.16” × 0.16”

EG96P5: Andradite (variety demantoid) with Amphibole

The crystals combine the dodecahedron and trapezohedron. They are transparent, very bright and have deep green color and have very well defined faces and edges that strongly contrast with the white fibrous matrix.
Jeffrey Mine, ↓200 m, Asbestos, Les Sources RCM, Estrie, Québec Canada (25/04/2009)
Specimen size: 2.7 × 1.5 × 1.2 cm = 1.06” × 0.59” × 0.47”

TV17N8: Andradite (variety demantoid) with Amphibole

A novelty in Ste. Marie 2009. The crystals combine a dominant dodecahedron with the trapezohedron. The crystals have a very deep green color, excellent transparency and luster, contrasting with a white amphibole matrix with Serpentine. The species has been accurately analyzed.
The specimen has been reviewed, photographed and published as a novelty from Ste. Marie 2009 in the Russian magazine ‘Mineral Observer’ on page 60 in the volume 14, number 3
Jeffrey Mine, ↓200 m, Asbestos, Les Sources RCM, Estrie, Québec Canada (25/04/2009)
Specimen size: 7.8 × 6.7 × 3.8 cm = 3.07” × 2.64” × 1.50”

Main crystal size: 0.6 × 0.5 cm = 0.24” × 0.20”

TE47N8: Andradite (variety demantoid) with Amphibole

A novelty in Ste. Marie 2009. Two crystals that combine a dominant dodecahedron with the trapezohedron. The crystals have a very deep green color, excellent transparency and luster, contrasting with a white amphibole matrix. The species has been accurately analyzed.
The specimen has been reviewed, photographed and published as a new discovery in the magazine ‘Rivista Mineralogica Italiana’ on page 280 in number 2009/4
Jeffrey Mine, ↓200 m, Asbestos, Les Sources RCM, Estrie, Québec Canada (25/04/2009)
Specimen size: 3.1 × 1.4 × 2 cm = 1.22” × 0.55” × 0.79”

TR50N8: Andradite (variety demantoid) with Amphibole

A novelty in Ste. Marie 2009. The crystals combine a dominant dodecahedron with the trapezohedron. The crystals have a very deep green color, excellent transparency and luster, contrasting with a white amphibole matrix with Serpentine. The species has been accurately analyzed.
Jeffrey Mine, ↓200 m, Asbestos, Les Sources RCM, Estrie, Québec Canada (25/04/2009)
Specimen size: 13.5 × 8.3 × 4.2 cm = 5.31” × 3.27” × 1.65”

Main crystal size: 0.4 × 0.4 cm = 0.16” × 0.16”

MA27AL7: Andradite (variety demantoid) with Calcite

Andradite crystals (demantoid variety) of good size and with a balance between trapezohedron and rhombododecahedron faces. Between transparent and translucent, with good luster and a very intense and uniform green color. On matrix, with aggregates of small Calcite crystals.
Antetezambato outcrop, Antetezambato, Maherivaratra Commune, Ambanja District, Antsiranana Province Madagascar (2010)
Specimen size: 6.6 × 5.4 × 4.7 cm = 2.60” × 2.13” × 1.85”

TQ76AD9: Andradite (variety demantoid) with Diopside

Andradite (demantoid variety) crystals that are distinctly isolated. They display very well defined trapezohedral and dodecahedral forms and they are bright, and have a very intense and deep green color.
Belqeys Mountain, Takab, West Azerbaijan Province Iran (03/2016)
Specimen size: 6.1 × 4.4 × 3.2 cm = 2.40” × 1.73” × 1.26”

Main crystal size: 0.9 × 0.8 cm = 0.35” × 0.31”

TT27AD9: Andradite (variety demantoid) with Diopside

Andradite (demantoid variety) crystals that are distinctly isolated, one of them clearly dominant. They display very well defined trapezohedral and dodecahedral forms and they are bright and have a very intense and deep green color.
Belqeys Mountain, Takab, West Azerbaijan Province Iran (03/2016)
Specimen size: 5 × 3.6 × 2.7 cm = 1.97” × 1.42” × 1.06”

EF99AH9: Andradite (variety demantoid) with Diopside

Parallel growth of two Andradite (demantoid variety) crystals, one of them clearly dominant and very large compared with the known samples, having the very well defined forms of the trapezohedron and the dodecahedron, with a very intense deep green color and on matrix.
Belqeys Mountain, Takab, West Azerbaijan Province Iran (2017)
Specimen size: 4.8 × 3.5 × 1.7 cm = 1.89” × 1.38” × 0.67”

TX92AD5: Andradite (variety demantoid) with Diopside

Andradite (demantoid variety) crystals, one of them clearly dominant and with a considerable sizefor this locality, showing the trapezohedron and dodecahedron. They are bright, have a very intense and deep green color and are on matrix.
Belqeys Mountain, Takab, West Azerbaijan Province Iran (03/2016)
Specimen size: 7.2 × 4.7 × 4.2 cm = 2.83” × 1.85” × 1.65”

TA50Q6: Andradite (variety demantoid) with Quartz

Dodecahedral crystals beveled by trapezohedron faces. They are isolated or in groups and are translucent, very bright and with an excellent green color. They are on matrix with Quartz, a very rare association on this locality.
Antetezambato outcrop, Antetezambato, Maherivaratra Commune, Ambanja District, Antsiranana Province Madagascar (08/2009)
Specimen size: 11.2 × 6.8 × 3.6 cm = 4.41” × 2.68” × 1.42”

Main crystal size: 1.2 × 0.7 cm = 0.47” × 0.28”

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