Prof. Dr. Josep Antoni Herrera i Sancho (PhD.EnD.MSc.LLM.MArch.MBLandArch)’s Post

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General Scientific Coordinator Regional Governments at Garraf Karst Park Nature Reserve (Barcelona. Catalonia. Spain)

The crystals form as flattened, tabular, hexagonal plates. TESTS Feels greasy. If rubbed on paper, a gray mark is left. Group: NATIVE ELEMENTS Composition: C Hardness: 1–2 SG: 2.09–2.23 https://lnkd.in/dUXFBDyM

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The crystals form as flattened, tabular, hexagonal plates. TESTS Feels greasy. If rubbed on paper, a gray mark is left. Group: NATIVE ELEMENTS Composition: C Hardness: 1–2 SG: 2.09–2.23 https://lnkd.in/dUXFBDyM

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