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Porphyry Blocks
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About Porphyry Blocks:
Porphyry is a diversity of igneous rock consisting of large-grained crystal such as quartz and feldspar scattered in a fine-grained groundmass. Porphyry(in Italian stone market called "Porfidi") is widely used in urban landscaping and gardening projects. Stonecontact.com, you can find all kinds of Porphyry blocks and boulders in various sizes at the best prices and directly from the quarry owners.
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Questions & Answers on Porphyry Blocks
What is porphyry used for?View answer
Porphyry is widely used in urban landscaping and gardening projects. It is prized for its great compressive strength and exceptional durability. For this reason it is now most commonly used as a paving stone.
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Read moreWhere is porphyry mined?View answer
Porphyries are most commonly found along the west coast of North and South America(US, Chile, Argentina), as well as in the Southwest Pacific, Egypt, Italy, Turkey, Iran, Armenia, India, China.
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Read moreIs porphyry a granite? What is difference?View answer
No, its not. Granite is a very hard, granular, crystalline igneous rock which consists mainly of quartz, mica, and feldspar and is often used as building stone.Porphyry is a reddish-brown to purple igneous rock containing large phenocrysts of various minerals embedded in a fine-grained matrix.Most important differencies:
1. Grains and SizeGranite:Large and Coarse Grained Rock, Opaque Rock. Porphyry: Fine Grained Rock, Opaque Rock.
2. Texture
Granite:Granular, Phaneritic
Porphyry: Porphyritic
3. Maintenance
Granite:More
Porphyry: Less
4. Water Resistant
Granite: More
Porphyry: Less
5. Wind Resistant
Granite: More
Porphyry: Less
6. Acid Resistant
Granite: Less
Porphyry:More
7. Appearance
Granite: Veined or Pebbled
Porphyry: Dull
8. Density(Average)
Granite: 2.65-2.75 g/cm3
Porphyry: 2.5-2.52 g/cm3
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