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Twinned Diaspore.
EF26AL6: Twinned Diaspore
A partial novelty after the Sainte Marie 2020 Virtual Show. From a classic Turkish locality but with a different morphology and color. With a vertical twin plane, the crystal has excellent terminal faces, is transparent and very lustrous, and is very fine and of great quality. With greenish yellow tones and marked dichroism, it changes color between soft red and green depending on the type of incident light and the angle of incidence of the light.
Ilbir Mountain, Pinarcik, Milâs District, Muğla Province, Aegean Region  Turkey (2020)
Specimen size: 5.4 × 1.7 × 1 cm = 2.13” × 0.67” × 0.39”
Price: [SOLD]
Twinned Diaspore with Rutile.
EV10AL9: Twinned Diaspore with Rutile
Mostly new after the Sainte Marie 2020 Virtual Show, from a classic Turkish locality but with a different transparency and color. A twin of two crystals with different terminations, one of them with visible faces and the other with very acute polycrystalline growths. The longest crystal has a partially incomplete termination. The crystals are transparent, with good luster and abundant Rutile inclusions. They have an intense yellow-green color with focused natural light and more yellow under halogen light, and with clearly visible dichroism changing color between soft red and green.
Ilbir Mountain, Pinarcik, Milâs District, Muğla Province, Aegean Region  Turkey (2020)
Specimen size: 5.2 × 2.4 × 1.9 cm = 2.05” × 0.94” × 0.75”

Main crystal size: 5.2 × 1 cm = 2.05” × 0.39”
Price: [SOLD]
Twinned Dolomite.
NZ66AL0: Twinned Dolomite
Group of very sharp Dolomite crystals, rhombohedral, with interpenetration twins, between transparent and translucent, very bright luster, and on matrix. A Spanish classic that comes from the Carlos Prieto Paramio collection, whose label we will send to the buyer.
Asturreta Quarry, 'el pozo', Eugui, Esteríbar, Comarca Auñamendi, Chartered Community of Navarre (Navarre)  Spain (±1970)
Specimen size: 6.5 × 5.1 × 4.5 cm = 2.56” × 2.01” × 1.77”
Price: [SOLD]
Twinned Dolomite.
MA86AJ2: Twinned Dolomite
Aerial group of very sharp rhombohedral Dolomite crystals, twinned with their faces crossed by fine growth striations, colorless, clear and very bright. An excellent Spanish classic.
Asturreta Quarry, 'el pozo', Eugui, Esteríbar, Comarca Auñamendi, Chartered Community of Navarre (Navarre)  Spain (±1970)
Specimen size: 5.4 × 4.7 × 2.2 cm = 2.13” × 1.85” × 0.87”

Main crystal size: 1.7 × 1.7 cm = 0.67” × 0.67”
Price: [SOLD]
Twinned Dolomite.
JFD150AO7: Twinned Dolomite
From the glorious era in which, in the 'el pozo' area, Engineer Córdoba ordered the saving of exceptional specimens. I was only 18 years old at the time and this was one of the dolomites I got. There were much better ones but, having just started in the world of mineral collecting at that time, I don't complain about my luck.
Asturreta Quarry, 'el pozo', Eugui, Esteríbar, Comarca Auñamendi, Chartered Community of Navarre (Navarre)  Spain (±1974)
Specimen size: 5.4 × 4.4 × 3.2 cm = 2.13” × 1.73” × 1.26”
Price: [SOLD]
Twinned Dolomite.
4D27: Twinned Dolomite
Group of very sharp, colorless, transparent and shiny rhombohedral Dolomite crystals with sharp interpenetration twins. A Spanish classic of excellent quality.
Asturreta Quarry, 'el pozo', Eugui, Esteríbar, Comarca Auñamendi, Chartered Community of Navarre (Navarre)  Spain (1970)
Specimen size: 12.0 × 10.3 cm = 4.72” × 4.06”

Main crystal size: 1,5 × 3.8 cm = 0.39” × 1.50”
Price: [SOLD]
Twinned Dolomite.
EM99AI7: Twinned Dolomite
Group of very sharp rhombohedral crystals, one of them clearly dominant. They are interpenetration twins and are transparent, very bright and have gray phantom growths. A Spanish classic really fine and of great quality. The sample is from the Daunis collection.
Asturreta Quarry, 'el pozo', Eugui, Esteríbar, Comarca Auñamendi, Chartered Community of Navarre (Navarre)  Spain (±1970)
Specimen size: 5.6 × 3.5 × 4.3 cm = 2.20” × 1.38” × 1.69”
Price: [SOLD]
Twinned Dolomite.
EM90AK5: Twinned Dolomite
Group of very sharp, colorless, transparent and brilliant rhombohedral crystals of Dolomite, on matrix, with some Pyrite microcrystals. A Spanish classic of excellent quality.
Asturreta Quarry, 'el pozo', Eugui, Esteríbar, Comarca Auñamendi, Chartered Community of Navarre (Navarre)  Spain (±1970)
Specimen size: 12.8 × 7.4 × 4 cm = 5.04” × 2.91” × 1.57”

Main crystal size: 4.1 × 3.4 cm = 1.61” × 1.34”
Price: [SOLD]
Twinned Dolomite.
TC680NF: Twinned Dolomite
Sharp rhombohedral Dolomite crystals with very distinct interpenetration twins, from transparent to translucent, lustrous and colorless with the gray zoning characteristic of old Eugui Dolomites, on matrix. A great Spanish classic.
Azcárate Quarry, Eugui, Esteríbar, Comarca Auñamendi, Chartered Community of Navarre (Navarre)  Spain (1997)
Specimen size: 22 × 13.8 × 7.2 cm = 8.66” × 5.43” × 2.83”
Price: [SOLD]
Twinned Dolomite.
MC93AJ5: Twinned Dolomite
Very aerial groups of rhombohedral twinned crystals that are transparent, very bright and colorless. An excellent Spanish classic with great quality and very esthetic.
Asturreta Quarry, 'el pozo', Eugui, Esteríbar, Comarca Auñamendi, Chartered Community of Navarre (Navarre)  Spain (±1970)
Specimen size: 9 × 8.7 × 6.8 cm = 3.54” × 3.43” × 2.68”

Main crystal size: 3.7 × 3.1 cm = 1.46” × 1.22”
Price: [SOLD]
Twinned Dolomite.
ET66AM7: Twinned Dolomite
Large group of very sharp rhombohedral Dolomite crystals. Transparent, very lustrous, with geometric color zoning, bluish grey tones and rainbows. A Spanish classic, difficult to find with this size of crystals and with such quality.
Asturreta Quarry, 'el pozo', Eugui, Esteríbar, Comarca Auñamendi, Chartered Community of Navarre (Navarre)  Spain (±1970)
Specimen size: 16.6 × 14 × 6 cm = 6.54” × 5.51” × 2.36”
Price: [SOLD]
Twinned Dolomite.
SA96AC1: Twinned Dolomite
Aggregate of crystals formed by the positive and the negative rhombohedron, twinned, very sharp and transparent. They have grown on a first generation of translucent white rhombohedrons of the same Dolomite. This kind of twin is very uncommon at Eugui, so, historically, they have been very appreciated by collectors.
Asturreta Quarry, Eugui, Esteríbar, Comarca Auñamendi, Chartered Community of Navarre (Navarre)  Spain (±1965)
Specimen size: 14.5 × 11.4 × 8.7 cm = 5.71” × 4.49” × 3.43”

Main crystal size: 5 × 4.2 cm = 1.97” × 1.65”
Price: [SOLD]
Twinned Dolomite.
HM160DQ: Twinned Dolomite
Group of very sharp rhombohedral Dolomite crystals, transparent, lustrous and colorless. A classic of the Spanish mineralogy.
Former collection of Lluís Daunis
Asturreta Quarry, 'el pozo', Eugui, Esteríbar, Comarca Auñamendi, Chartered Community of Navarre (Navarre)  Spain (±1970)
Specimen size: 4.4 × 4.1 × 2.9 cm = 1.73” × 1.61” × 1.14”
Price: €160 / US$170 / ¥26100 / AUD$260
Twinned Dolomite.
TD97D8: Twinned Dolomite
From the John Barlow collection, this perfect twin of two Dolomite crystals shows the degree of transparency and brilliance that has made the Dolomite from Eugui so famous. A very esthetic floater.
Asturreta Quarry, Eugui, Esteríbar, Comarca Auñamendi, Chartered Community of Navarre (Navarre)  Spain (±1974)
Specimen size: 5.5 × 4.9 × 4.2 cm = 2.17” × 1.93” × 1.65”
Price: [SOLD]
Twinned Dolomite.
FY47K0: Twinned Dolomite
Twin of two rhombohedral crystals of very well defined faces and edges, bright and translucent. The original label indicates that it was a gift from Carlos Díaz de Mauriño, from Pamplona, in 1967, to Sr. Folch.
Asturreta Quarry, Eugui, Esteríbar, Comarca Auñamendi, Chartered Community of Navarre (Navarre)  Spain (±1967)
Specimen size: 7.7 × 6.1 × 6 cm = 3.03” × 2.40” × 2.36”
Price: [SOLD]
Twinned Dolomite.
NT89S5: Twinned Dolomite
Transparent and bright rhombohedral crystals with very well defined phantom growths in some of their faces. The interpenetration twin is specially sharp and underlined by fine horizontal striations.
Asturreta Quarry, Eugui, Esteríbar, Comarca Auñamendi, Chartered Community of Navarre (Navarre)  Spain
Specimen size: 6.3 × 4.6 × 2.8 cm = 2.48” × 1.81” × 1.10”
Price: [SOLD]
Twinned Dolomite.
N8LN5: Twinned Dolomite
The twinned Dolomites from Eugui are a real classic. While the quarry is still active good, transparent, brilliant and damage free material is rare and only appears when local collectors make an occasional find.
Azcárate Quarry, Eugui, Esteríbar, Comarca Auñamendi, Chartered Community of Navarre (Navarre)  Spain (1998)
Specimen size: 3.1 × 2.8 × 2.3 cm = 1.22” × 1.10” × 0.91”
Price: [SOLD]
Twinned Dolomite.
N11CI0: Twinned Dolomite
Nice miniature of rhombohedra, one of them very aerial, of very well defined faces and edges, with color changes between bluish-gray and white and between translucent and completely transparent. Crystals clearly show the interpenetrating twin of two rhombohedra.
Azcárate Quarry, Eugui, Esteríbar, Comarca Auñamendi, Chartered Community of Navarre (Navarre)  Spain (1998)
Specimen size: 5.1 × 4.1 × 2.7 cm = 2.01” × 1.61” × 1.06”

Main crystal size: 1.2 × 0.9 cm = 0.47” × 0.35”
Price: [SOLD]
Twinned Dolomite.
AV11P9: Twinned Dolomite
An excellent miniature that forms a multiple floater twin of rhombohedral crystals that are very transparent, clear and bright.
Azcárate Quarry, Eugui, Esteríbar, Comarca Auñamendi, Chartered Community of Navarre (Navarre)  Spain (1993)
Specimen size: 2.4 × 2.2 × 1.6 cm = 0.94” × 0.87” × 0.63”
Price: [SOLD]
Twinned Dolomite.
TN46H9: Twinned Dolomite
Group of crystals with a very well marked interpenetration twin of two rhombohedrons. They are very clear, bright and free of damage.
Azcárate Quarry, Eugui, Esteríbar, Comarca Auñamendi, Chartered Community of Navarre (Navarre)  Spain (02/2006)
Specimen size: 4.3 × 4 × 3 cm = 1.69” × 1.57” × 1.18”

Main crystal size: 2.7 × 2.2 cm = 1.06” × 0.87”
Price: [SOLD]
Twinned Dolomite.
NR47M3: Twinned Dolomite
Huge translucent rhombohedral Dolomite crystals. Excellent brilliance and a prominent Dolomite twin. A classic Spanish collector’s specimen.
Azcárate Quarry, Eugui, Esteríbar, Comarca Auñamendi, Chartered Community of Navarre (Navarre)  Spain (08/2007)
Specimen size: 11.1 × 8 × 6 cm = 4.37” × 3.15” × 2.36”
Price: [SOLD]
Twinned Fluorite.
FD60H2: Twinned Fluorite
Group of twinned crystals of Fluorite, with the typical deep green color of the old samples from the locality. The specimen was on Martín Oliete collection. Martín purchased it in 1976 from Bailey Minerals.
Heights Quarry, Westgate, Weardale, North Pennines Orefield, County Durham  England / United Kingdom (±1976)
Specimen size: 4.2 × 3.2 × 3 cm = 1.65” × 1.26” × 1.18”

Main crystal size: 2.9 × 1.9 cm = 1.14” × 0.75”
Price: [SOLD]
Twinned Galena with Calcite and Sphalerite.
AL67M6: Twinned Galena with Calcite and Sphalerite
Group of very flattened octahedral crystals of Galena due to spinel twinning. They are bright, very well defined and partially covered by a group of white crystals of Calcite and with a group of Sphalerite crystals on the base.
Second Sovetskii Mine, Dalnegorsk, Dalnegorsk Urban District, Primorsky Krai  Russia (2001)
Specimen size: 6.9 × 6.3 × 4.9 cm = 2.72” × 2.48” × 1.93”
Price: [SOLD]
Twinned Hambergite.
TA64Q0: Twinned Hambergite
A novelty at Tucson 2010. A floater crystal with very well defined faces and edges, a very unusual shape for the species, with a very obvious twin, a very good luster and an excellent degree of transparency.
Tampo'ny llapa, Sahatany Valley, Ibitiny, Antsirabe  Madagascar (20/12/2009)
Specimen size: 3.3 × 1.8 × 0.7 cm = 1.30” × 0.71” × 0.28”
Price: [SOLD]
Twinned Orthoclase.
FD6B9: Twinned Orthoclase
The Carlsbad twin name came from the Carlsbad locality in the Czech Republic. This Orthoclase also came from this locality and "guess what?": it is twinned by the Carlsbad law. A "type locality twin" from an old glorious European locality.
Karlovy Vary (Carlsbad), Karlovy Vary District, Karlovy Vary Region, Bohemia  Czech Republic
Specimen size: 6 × 3.2 × 2 cm = 2.36” × 1.26” × 0.79”
Price: [SOLD]

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China
Chinese
Minerals		 Asia (excl. China) - Australia - Turkey
Tukey, Asia
& Australia
Minerals		 Joaquim Callen's Photo Gallery
Joaquim Callen's
Photo Gallery		 The Daunis Collection
The Daunis
Collection		 The Jan Buma Collections
The Jan Buma
Collections		 The Carles Curto Collection (duplicates)
The Carles Curto
Collection
The Jordi Fabre Collection (duplicates)
The Jordi Fabre Collection		 The Vault
The
Vault		 Express Minerals by Carles Manresa
Express Minerals
by C. Manresa		 Expominerals (Virtual Shows)
Expominerals		 Updates
Updates		 Minerals - Virtual Museum (#MVM)
Minerals - Virtual Museum
(#MVM)