Rosell Minerales
RM2424 Metazeunerite
Taghouni mine, Taghouni, Bou Azer, Tazenakht, Ouarzazate, MoroccoTabular metazeunerite crystals, of a pale green color, forming aggregates in a cavity of the matrix. On one of these aggregates, an aggregate of pale yellow methanováčekite crystals is disposed. It belongs from this classic Moroccan mine. The uranium-rich zone (vein 2) of the quarry had been covered.
Size: 3.9 x 3.2 x 1.9 cm.
Found in ca. 2006.
Presents radioactive activity.
RM1755 Gold, var. electrum and Erythrite
Taghouni mine, Taghouni, Bou Azer, Tazenakht, Ouarzazate, MoroccoThese specimens show a matrix formed by arsenates such as erythrite and associated sulphides and arsenates of cobalt and iron. We can observe on both the presence of arborescent, filiform and laminar gold aggregates. SEM analysis has shown that this is a variety of gold rich in silver (23-24%w): electrum.
Under loupe, we can enjoy that some of these gold aggregates are formed by small crystals of octahedral to cubic forms. We can theorize a secondary genesis for this gold-electrum. We have analyzed the matrix of these specimens observing that the bright metallic matrix corresponds to a mixture of cobalt arsenides, probably skutterudite, and other sulphides. We will send all analyzes to the buyer. The deposit where the electrum appeared has been totally covered by mine lands, so more samples can not be obtained on the field. A very rich gold-electrum specimen.
Size: 5.0 x 4.2 x 2.8 cm.
Found in 01/2018.
Analyzed specimen with report

RM1666 Gold, var. electrum and Erythrite
Taghouni mine, Taghouni, Bou Azer, Tazenakht, Ouarzazate, MoroccoThese specimens show a matrix formed by arsenates such as erythrite and associated sulphides and arsenates of cobalt and iron. We can observe on both the presence of arborescent, filiform and laminar gold aggregates. SEM analysis has shown that this is a variety of gold rich in silver (23-24%w): electrum.
Under loupe, we can enjoy that some of these gold aggregates are formed by small crystals of octahedral to cubic forms. We can theorize a secondary genesis for this gold-electrum. We have analyzed the matrix of these specimens observing that the bright metallic matrix corresponds to a mixture of cobalt arsenides, probably skutterudite, and other sulphides. We will send all analyzes to the buyer. The gold and electrum in Bou Azer was already described, but the quality of these specimens we offer surpasses what was known. A very rich gold-electrum specimen.
Size: 5.5 x 4.0 x 2.5 cm.
Main crystal: 5 mm.
Found in 2017
Analyzed specimen with report

RM1598 Gold, var. electrum and Erythrite
Taghouni mine, Taghouni, Bou Azer, Tazenakht, Ouarzazate, MoroccoA novelty in Sainte-Marie-aux-Mines (2017). Matrix formed by sulphides, arsenites and arsenates of Co like erythrite, with some crystals, accompanied by several wire to laminar gold aggregates. SEM analysis shows that it is a rich silver gold, variety electrum, unusual. Silver content is similar in all specimens we have analyzed and varies between 20-24% weight.
Under loupe, we can enjoy that some of these gold aggregates are formed by small crystals of octahedral to cubic forms. We can theorize a secondary genesis for this gold-electrum. We have analyzed the matrix of these specimens observing that the bright metallic matrix corresponds to a mixture of cobalt arsenides, probably skutterudite, and other sulphides. We will send all analyzes to the buyer. The gold and electrum in Bou Azer was already described, but the quality of these specimens we offer surpasses what was known.
Size: 6.0 x 4.7 x 2.4 cm.
Found in 2017
Analyzed specimen with report
RM1597 Gold, var. electrum and Erythrite
Taghouni mine, Taghouni, Bou Azer, Tazenakht, Ouarzazate, MoroccoA novelty in Sainte-Marie-aux-Mines (2017). Matrix formed by sulphides, arsenites and arsenates of Co like erythrite, with some crystals, accompanied by several wire to laminar gold aggregates. SEM analysis shows that it is a rich silver gold, variety electrum, unusual. Silver content is similar in all specimens we have analyzed and varies between 20-24% weight.
Under loupe, we can enjoy that some of these gold aggregates are formed by small crystals of octahedral to cubic forms. We can theorize a secondary genesis for this gold-electrum. We have analyzed the matrix of these specimens observing that the bright metallic matrix corresponds to a mixture of cobalt arsenides, probably skutterudite, and other sulphides. We will send all analyzes to the buyer. The gold and electrum in Bou Azer was already described, but the quality of these specimens we offer surpasses what was known. A very nice miniature with several wire and laminar electrum.
Size: 4.0 x 3.3 x 2.6 cm.
Found in 2017
Analyzed specimen with report
RM1596 Gold, var. electrum
Taghouni mine, Taghouni, Bou Azer, Tazenakht, Ouarzazate, MoroccoA novelty in Sainte-Marie-aux-Mines (2017). These specimens show a matrix formed by associated sulphides and arsenates of cobalt and iron. We can observe on both the presence of arborescent, filiform and laminar gold aggregates. SEM analysis has shown that this is a variety of gold rich in silver (20-24%weight): electrum. Under the loupe we can enjoy that some of these aggregates are formed by small crystals of octahedral to cubic shape of the precious metal. We can think a secondary genesis for this gold electrum. We have analyzed these specimens observing that the brilliant metallic matrix corresponds to skutterudite and other sulphides-arsenides. We will send all analysis to the buyer. The gold and electrum in Bou Azer was already described, but the quality of these specimens we offer surpasses what was known. A very rich gold specimen, with good size and aesthetic.
Size: 6.5 x 4.5 x 3.6 cm.
Main crystal: 18 mm.
Found in 2017
Analyzed specimen with report

RM1591 Gold, var. electrum and Erythrite
Taghouni mine, Taghouni, Bou Azer, Tazenakht, Ouarzazate, MoroccoA novelty in Sainte-Marie-aux-Mines (2017). These specimens show a matrix formed by arsenates such as erythrite and associated sulphides and arsenates of cobalt and iron. We can observe on both the presence of arborescent, filiform and laminar gold aggregates. SEM analysis has shown that this is a variety of gold rich in silver (20-24%w): electrum.
Under the loupe we can enjoy that some of these aggregates are formed by small crystals of octahedral to cubic shape of the precious metal. We can think a secondary genesis for this gold electrum. We have analyzed these specimens observing that the brilliant metallic matrix corresponds to skutterudite and other sulphides. We will send all analysis to the buyer. The gold electrum in Bou Azer was already described, but the quality of these specimens we offer surpasses what was known. A very rich gold specimen, with good size and aesthetic.
Size: 11.5 x 7.8 x 6.5 cm.
Main crystal: 12 mm
Found in 2017
RM1590 Gold, var. electrum and Erythrite
Taghouni mine, Taghouni, Bou Azer, Tazenakht, Ouarzazate, MoroccoA novelty in Sainte-Marie-aux-Mines (2017). These specimens show a matrix formed by arsenates such as erythrite and associated sulphides and arsenates of cobalt and iron. We can observe on both the presence of arborescent, filiform and laminar gold aggregates. SEM analysis has shown that this is a variety of gold rich in silver (23-24%w): electrum.
Under loupe, we can enjoy that some of these gold aggregates are formed by small crystals of octahedral to cubic forms. We can theorize a secondary genesis for this gold-electrum. We have analyzed the matrix of these specimens observing that the bright metallic matrix corresponds to a mixture of cobalt arsenides, probably skutterudite, and other sulphides. We will send all analyzes to the buyer. The gold and electrum in Bou Azer was already described, but the quality of these specimens we offer surpasses what was known. A very rich gold-electrum specimen, with good size and aesthetic.
Size: 7.5 x 6.0 x 4.0 cm.
Main crystal: 10 mm.
Found in 2017
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