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Gold/Mining/Energy : ARP - V Argentina Gold -- Ignore unavailable to you. Want to Upgrade?

To: the Chief who wrote (990)	11/3/1998 7:03:00 PM
From: Elizabeth Andrews	Read Replies (1) \| Respond to of 3282

The density of acid intrusives or extrusives is roughly 2.6 to 2.7 g/cm3. Massive sulfides (copper-lead-zinc-pyrite) are typically 4.0 to 4.5 g/cm3. Porphyry copper ores are typically 2.3 to 2.6 g/cm3. Mafic or basic intrusives (no sulfides) are about 2.8 to 3.0 g/cm3 Auriferous quartz veins (low or no sulfides) are typically 2.6 g/cm3. Based on the description of the geology we are dealing with acid volcanics, so the density is going to be around 2.6, so a cubic meter will weigh about 2.6 metric tonnes.