"Mineral Classics" - Dealing in fine minerals and gems for over 45 years! Online since 2002!

 











*** Welcome to Mineral Classics! Saturday, June 24, 2017... Our database contains 2562 specimens, encompassing 178 species... Please be sure to check out our new fully searchable database feature (click on the Search Site button on the left side of the screen)




Rare Gemstones!!
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Phosphophyllite from Cerro Rico, Bolivia [./Newmixgem11081/Phospho157a.JPG] Phosphophyllite from Cerro Rico, Bolivia [./Newmixgem11081/Phospho157b.JPG]

Gemstone # PHOSPHO158
Name: Phosphophyllite
Locality: Cerro Rico, Bolivia
Weight: 1.57 carats
Size: 12.74 x 7.49 mm
Price per Carat: SOLD
Price For Stone: SOLD
      Cut: Free Form
Color: Vibrant Blue Green
Clarity: VVS
Cut by Us: No
Availability: sold

Comments:

Phosphophyllite is one of the "Holy Grails" of rare gems. The material is one of the ultimate combinations of rarity and beauty. Virtually all of the gem quality Phosphophyllite in the world is found at the Unificada mine in great mountains of Cerro Rico the famous silver mining district of Potosi, Bolivia. The supply has dwindled to say the least over the last 60 years since the initial discovery of the mineral at this mine. This stone is actually from the "old" material, and was in our father's collection for years. He had set it aside to be cut one day, and once Brett was ready, he decided that he was going to be the one to cut it. Brett cut this stone in November of 2008. It is an impressive and attractive stone of this highly sought after material. PLEASE NOTE that the photos simply DO NOT DO THIS STONE JUSTICE. It is much more attractive in person. The fact that the stone is over one carat makes all the difference as gems are not considered true collector quality until they reach this size.

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Phosphophyllite from Bolivia [./Newmixgem11081/Phospho039a.JPG] Phosphophyllite from Bolivia [./Newmixgem11081/Phospho039b.JPG]

Gemstone # PHOSPHO039
Name: Phosphophyllite
Locality: Bolivia
Weight: 0.39 carats
Size: 6.83 x 4.81 mm
Price per Carat: $ 800.00 SOLD
Price For Stone: $ 312.00 SOLD
      Cut: Free Form
Color: Vibrant Blue Green
Clarity: VVS
Cut by Us: No
Availability: sold

Comments: Phosphophyllite is one of the "Holy Grails" of rare gems. The material is one of the ultimate combinations of rarity and beauty. Virtually all of the gem quality Phosphophyllite in the world is found at the Unificada mine in great mountains of Cerro Rico the famous silver mining district of Potosi, Bolivia. The supply has dwindled to say the least over the last 60 years since the initial discovery of the mineral at this mine. This stone is actually from the "old" material, and was in our father's collection for years. He had set it aside to be cut one day, and once Brett was ready, he decided that he was going to be the one to cut it. Brett cut this stone in November of 2008. It is an impressive and attractive stone of this highly sought after material.

To order this specimen click here




Phosphophyllite from Bolivia [./Newmixgem11081/Phospho038a.JPG] Phosphophyllite from Bolivia [./Newmixgem11081/Phospho038b.JPG] Phosphophyllite from Bolivia [./Newmixgem11081/Phospho038c.JPG]

Gemstone # PHOSPHO038
Name: Phosphophyllite
Locality: Bolivia
Weight: 0.38 carats
Size: 6.59 x 4.10 mm
Price per Carat: SOLD
Price For Stone: SOLD
      Cut: Free Form
Color: Vibrant Blue Green
Clarity: VVS
Cut by Us: No
Availability: sold

Comments:

Phosphophyllite is one of the "Holy Grails" of rare gems. The material is one of the ultimate combinations of rarity and beauty. Virtually all of the gem quality Phosphophyllite in the world is found at the Unificada mine in great mountains of Cerro Rico the famous silver mining district of Potosi, Bolivia. The supply has dwindled to say the least over the last 60 years since the initial discovery of the mineral at this mine. This stone is actually from the "old" material, and was in our father's collection for years. He had set it aside to be cut one day, and once Brett was ready, he decided that he was going to be the one to cut it. Brett cut this stone in November of 2008. It is an impressive and attractive stone of this highly sought after material.

To order this specimen click here




Phosgenite from Sardinia, Italy [./Newmixgem11081/Phos861a.JPG] Phosgenite from Sardinia, Italy [./Newmixgem11081/Phos861b.JPG] Phosgenite from Sardinia, Italy [./Newmixgem11081/Phos861c.JPG]

Gemstone # PHOS861
Name: Phosgenite
Locality: Sardinia, Italy
Weight: 8.61 carats
Size: 11.90 x 9.94 mm
Price per Carat: $ 75.00 SOLD
Price For Stone: $ 645.75 SOLD
      Cut: Free Form Fan
Color:
Clarity: VVS
Cut by Us: No
Availability: sold

Comments: Phosgenite is not often found in gemmy enough crystals to facet stones, and an 8+ CARTAT GEM is considered extremely good sized. The Phosgenites from Sardinia are often gemmy enough to yield facetted stones, and crystals can reach up to 12 cm in length. This particular stone is a very attractive gem with very minor inclusions, and a beautiful classic Phosgenite Champagne hue. You do not see these stones of the market very often, especially this size, and the Sardinian crystals are definitely the most classic of all Phosgenites. A great rarity and a beautiful overall gem for any collector.

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Phosgenite from Sardinia, Italy [./Newmixgem11081/Phos435a.JPG] Phosgenite from Sardinia, Italy [./Newmixgem11081/Phos435c.JPG] Phosgenite from Sardinia, Italy [./Newmixgem11081/Phos435b.JPG]

Gemstone # PHOS435
Name: Phosgenite
Locality: Sardinia, Italy
Weight: 4.35 carats
Size: 10.14 x 7.19 mm
Price per Carat: $ 65.00 SOLD
Price For Stone: $ 282.75 SOLD
      Cut: Free Form Fan
Color: Champagne
Clarity: VVS
Cut by Us: No
Availability: sold

Comments:

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Adamite (Cuprian) from Laurium, Greece [./Newmixgem11081/Adam106a.JPG]

Gemstone # ADAM106
Name: Adamite (Cuprian)
Locality: Laurium, Greece
Weight: 1.06 carats
Size: 8.33 x 6.05 mm
Price per Carat: SOLD
Price For Stone: SOLD
      Cut: Shield
Color: Sea Water Blue
Clarity: Translucent
Cut by Us: No
Availability: sold

Comments:

Adamite is rarely facetted, as the individual crystals are often too slender or too opaque to yield desirable stones. I have seen water clear Adamite crystals, but they are typically only a few mm wide, and would only produce the smallest of gems. This stone is from the famous locality of Laurium, Greece where Adamite is found in multitude of colors. The material is rarely gem quality except on the micro level, but the colors are amazing. This stone has the most enchanting "sea water blue" color, and is very attractive in person. It truly must be seen in person to be fully appreciated, and would make a stellar addition to any rare gem collection.

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Cuprite from Namibia [./Newmixgem11081/Cupr183a.JPG] Cuprite from Namibia [./Newmixgem11081/Cupr183b.JPG]

Gemstone # CUPR183
Name: Cuprite
Locality: Namibia
Weight: 1.83 carats
Size: 6.74 mm
Price per Carat: SOLD
Price For Stone: SOLD
      Cut: Round
Color:
Clarity: VVS
Cut by Us: No
Availability: sold

Comments:

Cuprite as a gem was a near impossibility until the Namibian material came around. Cuprite is one of those gems that is almost impossible to accurately photograph due to it's almost metallic appearance. The intense fiery blood red color of Cuprite along with the fact that larger stones exist make this a fairly exciting and highly collectible stone. The rough for these stones is no longer being found, and the best of the Cuprites are probably behind us. This gem is a perfect stone for a collector, not too big or too small, and it has great fire and clarity for the material. I promise this one looks MUCH better than the photos indicate.

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Muscovite from Brazil [./Newmixgem11081/Musc194a.JPG]

Gemstone # MUSC194
Name: Muscovite
Locality: Brazil
Weight: 1.94 carats
Size: 10.51 x 5.79 mm
Price per Carat: SOLD
Price For Stone: SOLD
      Cut: Rectangle
Color:
Clarity: Translucent
Cut by Us: No
Availability: sold

Comments: A perfect gem for a rare stone collector. Although Muscovite as a species is by no means rare, when is the last time you've seen a piece that was suitable for cutting, let alone a PINK of Muscovite gem? We couldn't resist buying this stone as it fits all the criteria for a collector quality rare gem: Hard to facet material (it has a perfect paper thin cleavage one direction) with great color and good size. Although the stone is not transparent, it is certainly one of the largest facetted Muscovites that I have seen, not to mention one of the prettiest color stones that I know of. These gems are few and far between, and the fact that it's nearly 2 carats makes it all the more impressive. It takes a master cutter to facet Muscovite and keep it from flaking apart, so if you've always wanted one for your collection, now is a great opportunity.

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Rutile from Brazil [./Newmixgem11081/Rut096a.JPG] Rutile from Brazil [./Newmixgem11081/Rut096c.JPG] Rutile from Brazil [./Newmixgem11081/Rut096b.JPG]

Gemstone # Rut096
Name: Rutile
Locality: Brazil
Weight: 0.96 carats
Size: 7.99 x 3.86 mm
Price per Carat: $ 125.00
Price For Stone: $ 120.00
      Cut: Oval
Color: Colorless
Clarity: Slight Inclusion
Cut by Us: No
Availability: Available

Comments: Rutile is usually only seen as inclusions in other gems like Quartz, and is rarely found in crystals that are thick enough or suitable enough to facet stones. Rutile is usually cut as a novelty, and typically faceted stones are extremely dark and opaque. With that said, this metallic stone actually shows an amazingly rich blood red color. You really don't see much faceted Rutile on the market, so this is a unique opportunity to obtain an unusually rare gem to fill a spot in your collection. Stones with this clarity and rich color are rarely seen, so don't miss out on this one.

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