Silius, South Sardinia Province, Sardinia, Italy

Baryte - xls 12 mm - Muscadroxius-Genna Tres Montis Mine, Silius, Cagliari Province, Sardinia, Italy - coll. and photo Antonio Gamboni.

© Antonio Gamboni

Elongated barite crystals with no matrix. The barite grades from pale yellow throughout most of the length to deep amber at the termination. Fluoresces and phosphoresces under UV illumination. No damage. Overall size of mineral specimen: 5x4x4 cm. Size of individual crystals: 1-5 cm.

© 2001 John H. Betts

Baryte - xls 4 cm - Muscadroxius-Genna Tres Montis Mine, Silius, Cagliari Province, Sardinia, Italy - coll. and photo Antonio Gamboni

© Antonio Gamboni

Specimen 11 cm. by 9.5 cm. by 9 cm. Crystals to 5 cm.

© T. Kennedy 2002

Large, translucent bladed crystals of gray barite on thin plate of matrix. The barite crystals have complex striations on the prism faces and beveled edges on the terminations. All crystals complete and undamaged. Overall size of mineral specimen: 8x6x6 cm. Size of individual crystals: 1-4 cm.

© 2001 John H. Betts

Fluorite - xls 6 cm with baryte - size 20 x 12 cm - Muscadroxius-Genna Tres Montis Mine, Silius, Cagliari Province, Sardinia, Italy - coll. and photo Antonio Gamboni.

© Antonio Gamboni

Two fine crystals have grown side by side (the larger 3.8 cm in length), standing out nicely from the matrix and well-terminated. The crystals have good deep amber color and excellent luster. You can forgive one ding on a corner of one of the crystals, as these specimens are uncommon on the market in any quality. 4.6 x 4.5 x 3.2 cm

© Rob Lavinsky & irocks.com

Size of specimen around 6x6 cm - Ex. Garzetti, Sept. 1988

© Dott. Geol. Marco Barsanti - geoman1@tin.it

Large 11 cm High: 7 cm Museo di Storia Naturale Aquilegia - Cagliari Photo: P.Stara Collection: M.Astolfi

Sharp, glassy crystals of golden barite with distinct phantoms inside, wrapped all the say around the sides of this specimen, with only a couple of dinged crystals on the display face (the matrix was a ridge that was exposed on both sides). This is an old Italian piece and these are difficult to come by! 9.1 x 7.1 x 5.7 cm

© Rob Lavinsky & irocks.com

Baryte - x 2,5 cm with calcite - Muscadroxius-Genna Tres Montis Mine, Silius, Cagliari Province, Sardinia, Italy - coll. and photo Antonio Gamboni

© Antonio Gamboni

Overall size 17x7x5 cm. Big group of cubic light violet crystals of fluorite with max. size 23 mm. covered with small pyrite crystals and oxydes. Photo and private collection of Marco Macchieraldo.

© Marco Macchieraldo

From a not well known locality. Group of very sharp cubic Fluorite crystals with a light lilac color, more intense on edges and on small scattered stains on cube faces.Genna Tres Montes Mine, Silius, Sardinia, Italy.Specimen size: 7.3 × 5.2 × 3.3 cmMain crystal size: 2.5 × 2 cmMinor fluorescence long & short UV

© Fabre Minerals https://www.fabreminerals.com

Golden amber tipped crystals gradually becoming white as they near the matrix of white quartz crystals, this classic is in super fine condition considering that most I have seen have significant damage. The largest crystal measures 2 1/2 x 1 1/4 inches. Over all : 3.0 x 2.8 x 2.0 inches. Crystal-Odyssey specimen. gemcrystals@aol.com

© 2006 Joseph A. Freilich, LLC. All Rights Reserved

Overall size 9x7x4 cm. Group of white calcite crystals with max. size 25 mm. and strange crystalization on a carpet of marcasite crystals. Photo and private collection of Marco Macchieraldo.

© Marco Macchieraldo

Large cluster of baryte, typical from Muscadroxiu. Overall dimensions: 16 x 10cm

© Jacques Malassé

Dimension: 9 cm x 8 cm Museo di Storia Naturale Aquilegia - Cagliari Coll.: M. Astolfi Photo: P. Stara

Marcasite crystals. FOV about 5 mm Collection Flavio G. Taricco (code C0802) Photo B. Marello

© Flavio G. Taricco

Franco Amadori photo. Paolo Franchi collection.

Overall size 9x8x5 cm. Beautiful carpet of brilliant yellow honey crystals with max. size 8 mm. on white matrix. Very yellow fluorescent under U.V. light. Photo and private collection of Marco Macchieraldo.

© Marco Macchieraldo

63.48 mm area with several Calcite " nail head " termination and a 20.37 mm Chalcopyrite group of crystals. Ex L.Girotto collection. Collection & Photo M.Chinellato

© Chinellato Matteo

Specimen size:19x12x9cm. Galena max Crystal size:2.5cm. Baryte max Crystal size:0.7cm Photo and collection Piras Martino(rougemin)

X.al Cm 3 Museo di Storia Naturale Aquilegia - Cagliari Coll.: M. Astolfi Photo: P. Stara

Nice 11.61 mm group of Galena crystals on Calcite matrix. Collection & Photo M.Chinellato

© Chinellato Matteo

Scalenoedric crystals of calcite yellow. Fov about 5 mm. Photo B. Marello Collection Flavio G. Taricco - Code C0803

© Flavio G. Taricco

Very nice and old specimen of this locality. The cristals of baryte are biterminated. Photo Franco Lazzari.

© Franco Lazzari

FOV about cm 10. The growths of calcite are approximately cm 2.5 - 3. Found at the end of 70s in the Genna Tres Montis Mine, Silius.

© Salvatore Giagheddu

Galena crystal of 11.71x9.34 mm with Calcite. Collection & Photo M.Chinellato

© Chinellato Matteo

Genna Tres Montis Mine. Pyrite crystals (0.5 cm) on the chalcedony. Specimen size:10x9x5cm. Photo and collection Piras Martino

From an uncommon locality for Fluorite. Group of light lilac colored cubic crystals, partially covered by small Marcasite crystals.Genna Tres Montes Mine, Silius, Sardinia, Italy.Specimen size: 8.7 × 8 × 5.2 cmMain crystal size: 1 × 1 cmFluorescent long & short UVFormer Jan Buma collection. Number 021001

© Fabre Minerals https://www.fabreminerals.com

Crystal size 11 mm. Collection and photo Giovanni Fraccaro.

© Giovanni Fraccaro

The size of this fine specimen is 11,5x6x7cm. All crystals are gemmy but the central crystal of Barite is completely transparent. Photo Franco Lazzari.

© Franco Lazzari

Biggest 29.73 mm Galena crystal with micro Chalcopyrite crystals. Collection & Photo M.Chinellato

© Chinellato Matteo

Transparent honey prismatic crystals, with bluish calcite crystals, on matrix. Collected: 1985 (by Dr. Giorgio Spiga - Capoterra, Cagliari).

© Carles Curto Milà

Baryte - xls up to 3 cm - coll. and photo Antonio Gamboni.

© Antonio Gamboni

Actually Genna-Tres Montis shaft, or mine, into the Silius vein. Need to add this locality. Quite unusual barite obtained from local expert Giorgio Spiga, who says Genna-Tres Montis was a separate mine very near the better known Muscadroxiu mine, run by same company but with separate management. Indeed, Mindat discussion of the Silius vein says: ...

© Bill Dameron

Excellent sample for the locality. The cubic crystals, translucent and of a uniform yellow color, are on a matrix with white rhombohedral crystals of Calcite and small coatings of Marcasite with the shape so called "cook's comb".Silius, Cagliari, Sardegna, Italy.Specimen size: 13.1 × 9.8 × 4.9 cm = 5.2” × 3.9” × 1.9”Main crystal size: ...

© Fabre Minerals https://www.fabreminerals.com

Franco Amadori photo. Paolo Franchi collection.

short colorless-yellow crystal of baryte up to 2.9 mm Photo Enrico Bonacina, Collection Fulvio Iurcotta

© Domenico Preite

7.2 x 6.8 x 4.0 cm. Sparkling, brassy marcasite crystal clusters are peppered on the glassy, translucent, fluorite cubes on this fine specimen from this well-known Sardinian locale. Bright light purple fluorescence. Ex. Herb Obodda specimen. Classic material.

© Rob Lavinsky & irocks.com

Photo and collection Piras Martino

Glassy somewhat complex yellow crystal, 4.5 cm, with amber phantom and smaller crystals plus small calcite rhombohedrons. 7x7x4 cm overall. Both barite and calcite fluoresce. Giorgio Spiga says there were two entrances into the ore body and barites from Muscadroxiu and Gennes Tres Montis are different, so while the two "mines" are joined and now ...

© Bill Dameron

During the late 1970's a fine lot of barite arrived in the U.S. from this Sardinian locality. For background on the find see The Mineralogical Record: 9: 192-195. This cabinet sized example is attractive and quite good. Glassy lustrous deep brownish-amber transparent to translucent orthorhombic crystals of barite to 5 cm in size are coming off a ...

© Dan & Diana Weinrich Minerals

Specimen from the Muscadroxiu Mine, Silius, purchased in the late 1980. Length of the crystal about 2,5 cm. Sold in 1983. Slide scanned with Nikon Coolscan 5000 ED. Photo S. Giagheddu.

© Salvatore Giagheddu

Overall size 9x8x5 cm. Beautiful carpet of brilliant yellow honey crystals with max. size 8 mm. on white matrix. Very yellow fluorescent under U.V. light.

© Marco Macchieraldo

Franco Amadori photo. Paolo Franchi collection.

A cluster of orange-brown, opaque to translucent barite crystals jut up from a massive barite matrix. The largest individual barite crystal is 4.2 cm long. Except along the edges, all crystals are terminated; the widest crystal on the left has a naturally healed termination. Specimen size 7.0 x 5.3 x 4.8 cm (2.8 2.1 x 1.9 inches)

© Steve Hardinger and Dragon Minerals 2010. All rights reserved.

dimension sample cm. 8 x 6 photo and collection Luigi Chiappino

Marcasite crystals on clear cubic fluorite. Max Crystal size:6cm. Specimen size:10x8x7. Photo and collection Piras Martino(rougemin)

Beautiful amber lustrous translucent prismatic terminated crystals of barite to 2.6 cm in length are set aesthetically upon a 5.5 x 4.7 x 4.4 cm matrix. The crystals are complete all around 360 degrees and damage-free. A very showy example for this locality! Ex Dawn and Jim Minette collection.

© Dan & Diana Weinrich Minerals

Aggregate of orange yellow crystals of barite on matrix white. Crystal size:1cm. Specimen size:12x11x5cm. Photo and collection Piras Martino(rougemin)

Specimen size:17x12x12cm. Fluorite max Crystal size:1.5cm. Photo and collection Piras Martino(rougemin)

Beautiful amber lustrous translucent prismatic terminated crystals of barite to 2.6 cm in length are set aesthetically upon a 5.5 x 4.7 x 4.4 cm matrix. The crystals are complete all around 360 degrees and damage-free. A very showy example for this locality! Ex Dawn and Jim Minette collection.

© Dan & Diana Weinrich Minerals

Biggest 29.73 mm Galena crystal with micro Chalcopyrite crystals. Collection & Photo M.Chinellato

© Chinellato Matteo

Old time specimen. Overall size 12 x 10 x 9 cm. Crystal size 9 x 3 x 3 cm. Photo Franco Lazzari.

© FRANCO LAZZARI

Group photograph 2.3 mm. Collection Giuseppe Verdi Photo Gianluca Fontana

© Fontana Gianluca

6.9 x 5.9 x 3.8 cm. Gorgeous, glassy, golden-amber tipped baryte crystals grade downward to colorless on this very fine cluster from a classic Sardinian locale. The colorful terminations have a striking, gem-like look. The very stout crystal has a textbook chisel termination and is 5.0 cm wide. The scattered complex, frosted calcite rhombs are a ...

© Rob Lavinsky & irocks.com

Franco Amadori photo. Paolo Franchi collection.

Two galena cubes, with some marcasite, on calcite matrix

© Fernando Metelli

A nowadays rare sardinian Baryte specimen, consisting of classic, intense honey-colored, double-ended and perfect crystals on matrix with calcite. [Marco Tomei collection and photo]

© Marco Tomei collection and photo

During the late 1970's a fine lot of barite arrived in the U.S. from this Sardinian locality. For background on the find see The Mineralogical Record: 9: 192-195. This cabinet sized example is attractive and quite good. Glassy lustrous deep brownish-amber transparent to translucent orthorhombic crystals of barite to 5 cm in size are coming off a ...

© Dan & Diana Weinrich Minerals

Baryte on Fluorite from Genna Tres Montis Mine, Silius, Cagliari Province, Sardinia, Italy. Fluorite crystals size:4cm. Baryte crystals size: 5cm. Specimen size:19x8x12cm. Photo and collection Piras Martino

Galena cube, 1.3 cm on edge, on large fluorite cubes

© Fernando Metelli

Very nice flattened prism crystallization of orange colored and half limpid baryte. All the crystals had growth parallely and show all tabular end faces. Width 9 cm Photo Yves Masson

© Yves Masson

7.2 x 6.8 x 4.0 cm. Sparkling, brassy marcasite crystal clusters are peppered on the glassy, translucent, fluorite cubes on this fine specimen from this well-known Sardinian locale. Bright light purple fluorescence. Ex. Herb Obodda specimen. Classic material.

© Rob Lavinsky & irocks.com

16 x 12 x 9 cm. An imposing large cabinet specimen consisting of massive white to purple Fluorite, covered with dozens of sharp Baryte crystals. The prismatic Barytes are straw-colored with gemmy golden terminations. The largest is 7 cm long, and doubly-terminated. The Barytes have a mild fluorescence, while the Fluorite has a strong fluorescence. ...

© Rob Lavinsky & irocks.com

"Old time" specimen of translucent, cubic, lustrous, yellow-green fluorite crystals partially coated with micro quartz crystals and associated with tabular, white baryte. Finding: about 1965 Overall piece size: 12.0 x 5.5 x 8.5 cm Mauro Rapazzini private collection.

© Mauro Rapazzini 2013

Baryte - xls 12 mm - Muscadroxius-Genna Tres Montis Mine, Silius, Cagliari Province, Sardinia, Italy - coll. and photo Antonio Gamboni

© Antonio Gamboni

Beautiful amber lustrous translucent prismatic terminated crystals of barite to 2.6 cm in length are set aesthetically upon a 5.5 x 4.7 x 4.4 cm matrix. The crystals are complete all around 360 degrees and damage-free. A very showy example for this locality! Ex Dawn and Jim Minette collection.

© Dan & Diana Weinrich Minerals

Amber crystals, dark to very golden flashes, thick pyramidal to 3.5 cm in group, a little mounded group of rounded white calcite crystals on one side. Good luster, color, 7.5x5.5x5 cm overall. One thin pale line but not cracked all the way through.

© Bill Dameron

A cluster of orange-brown, opaque to translucent barite crystals jut up from a massive barite matrix. The largest individual barite crystal is 4.2 cm long. Except along the edges, all crystals are terminated; the widest crystal on the left has a naturally healed termination. Field of view ~ 5 cm vertically

© Steve Hardinger and Dragon Minerals 2010. All rights reserved.

Beautiful amber lustrous translucent prismatic terminated crystals of barite to 2.6 cm in length are set aesthetically upon a 5.5 x 4.7 x 4.4 cm matrix. The crystals are complete all around 360 degrees and damage-free. A very showy example for this locality! Ex Dawn and Jim Minette collection.

© Dan & Diana Weinrich Minerals

Curious baryte sample with orange-yellow half limpid tabular and flattened crystals some of them hiddening phantoms. Width 8cm Collection and photo Yves Masson

© Yves Masson

Photo and collection Piras Martino

The specimen measures approximately 9 cm in width. Found in 1984 in the Muscadroxiu mine, Silius, by A. Podda, mining surveyor of the mine. Purchased from N. Maxia, Domusnovas. Image obtained from slide scanned with Nikon Coolscan 5000 scanner. Collection and photo S. Giagheddu.

© Salvatore Giagheddu