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Porphyry Natural Specimens

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Material: Porphyry
Rare Large Imperial Egyptian Red Porphyry specimen - partially polished
Rare Large Imperial Egyptian Red Porphyry specimen - partially polished

Rare Large Imperial Egyptian Red Porphyry specimen - partially polished

Located in Bruxelles, BE

Ancient red porphyry is a magmatic effusive lithotype characterized by a Bordeaux-red color, composed of a cryptocrystalline matrix in which floating phenocrysts of pale pinkish whit...

Category

19th Century Italian Classical Roman Antique Porphyry Natural Specimens

Materials

Porphyry

Rare Ancient Roman Fragment of Red Imperial Porphyry
Rare Ancient Roman Fragment of Red Imperial Porphyry

Rare Ancient Roman Fragment of Red Imperial Porphyry

Located in Wormelow, Herefordshire

An ancient example of a red Imperial Porphyry fragment dating back as far as 1st century Ancient Rome. This is a rare and unusual worked example of this semi-precious stone which is ...

Category

15th Century and Earlier Italian Classical Roman Antique Porphyry Natural Specimens

Materials

Porphyry

Large specimen of Imperial Egyptian Red Porphyry - Partially polished
Large specimen of Imperial Egyptian Red Porphyry - Partially polished

Large specimen of Imperial Egyptian Red Porphyry - Partially polished

Located in Bruxelles, BE

Ancient red porphyry is a magmatic effusive lithotype characterized by a Bordeaux-red color, composed of a cryptocrystalline matrix in which floating phenocrysts of pale pinkish whit...

Category

19th Century Italian Classical Roman Antique Porphyry Natural Specimens

Materials

Porphyry

Italian Grand Tour Collection of 19th Century Specimen Marbles
Italian Grand Tour Collection of 19th Century Specimen Marbles

Italian Grand Tour Collection of 19th Century Specimen Marbles

Located in Wormelow, Herefordshire

A fascinating Italian Grand Tour collection of hand-worked 19th century specimen marble fragments and semi-precious stones, many with original collector’s labels. This diverse set i...

Category

19th Century Italian Grand Tour Antique Porphyry Natural Specimens

Materials

Marble, Porphyry

Collection of 19th Century Italian Grand Tour Specimen Marbles
Collection of 19th Century Italian Grand Tour Specimen Marbles

Collection of 19th Century Italian Grand Tour Specimen Marbles

Located in Wormelow, Herefordshire

A curated collection of hand-worked 19th century Italian Grand Tour specimen marble fragments and semi-precious stones, many with original collector’s labels. This diverse set inclu...

Category

19th Century Italian Grand Tour Antique Porphyry Natural Specimens

Materials

Marble, Porphyry

Large Imperial Black Porphyry specimen
Large Imperial Black Porphyry specimen

Large Imperial Black Porphyry specimen

Located in Bruxelles, BE

Rare and Large Imperial Black Porphyry architectural fragment partially polished, 23,5 x 15 x 12 cm Porfido Nero is a rare Black Variety of Imperial Porphyry from Gebel Dokhan (th...

Category

15th Century and Earlier Italian Classical Roman Antique Porphyry Natural Specimens

Materials

Porphyry

Framed Specimen Marbles, Italian, circa 1880
Framed Specimen Marbles, Italian, circa 1880

Framed Specimen Marbles, Italian, circa 1880

Located in Spencertown, NY

A Collection of 25 Samples with in a Verde Antico Border, with Wooden Frame, Italian, late 19th Century. Each Specimen 2 1/2” x 1 3/4”

Category

1880s Italian Grand Tour Antique Porphyry Natural Specimens

Materials

Marble, Porphyry

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Ancient Roman Bronze Figure of Mercury

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Ancient Roman Bronze Figure of Mercury

Located in Beverly Hills, CA

The Roman deity Mercury was the god of commerce, communication, and travelers. He is the equivalent of Hermes from the Greek pantheon, and due to his association with communication ...

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Materials

Bronze

Extremely Rare Roman Glass Fragment with Iridescent Patina – 1st–4th Century AD
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Large 8 Inch Ammonite Fossil Cut Polished and Mounted Mineral Specimen
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Large 8 inch Split Ammonite Mounted Fossil Set Jurassic - Cretaceous Period, 200 - 145 million years old The cutting and polishing of this large pair revealed pale yellow-brown, cal...

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15th Century and Earlier Malagasy Other Antique Porphyry Natural Specimens

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Previously Available Items
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The oval porphyry mortar with animal head atop pestle, Italian, late 18th century.

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Porphyry