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About product and suppliers:
        Alibaba.com offers 708 porphyry stone products. About 26% of these are paving stone, 25% are granite, and 1% are crusher. 

A wide variety of porphyry stone options are available to you, such as free samples, paid samples. 

There are 708 porphyry stone suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of porphyry stone respectively. 

Porphyry stone products are most popular in North America, Western Europe, and Mid East. 

You can ensure product safety by selecting from certified suppliers, including 316 with Other, 122 with ISO9001, and 68 with SA8000 certification.