How is a QAP Diagram used to identify rocks?
2010年10月21日 · How to test rocks to see if gold looking stuff is really gold? Started by huntin4gold Board Geology, Palaeontology & Archaeology. Replies: 49 Views: 138810 …
Rock Identification for my Essay | Naked Science Forum
2006年8月28日 · Im a high school geography student. Not much of a geologist. These rocks came from a rock quarry in southern China and are probably metamorphic and sedimentary rock. …
Where do all the meteors that hit Earth come from?
2024年10月18日 · Two new papers in the journal Nature suggest the most common types of meteorites that reach Earth are likely to have come from just a handful of parent asteroids.
What metals (or elements) are commonly found in elemental form …
2012年8月12日 · Among the more common of such "native elements" are copper, silver, gold, carbon (as coal, graphite, or diamonds), sulfur, and mercury. All but a few of the most inert …
In the category of rocks, what does quartz, feldspar and mica mean?
2010年7月1日 · Because it is so resistant to erosion, it is also found in most sedimentary rocks (even if as very small grains). It is pervasive in most metamorphic rocks. Feldspar …
Is there an easy (cheap) way to identify aluminium alloys?
2012年9月7日 · Can you identify this material that was "growing" in my gutter? Started by Simulated Board General Science. Replies: 7 Views: 7704 27/06/2008 14:08:56 by RD: Can …
Are the resonant frequencies of substances the same in the …
2007年10月17日 · Currently, detecting buried gold or silver (coins, jewelry, nuggets, whatever) requires swinging a metal detector coil pretty much directly over the target, and even then …
New technique to tell whether rocks are man-made or naturally …
2011年1月17日 · New technique uses infa-red to tell whether rock fragments are man-made or naturally occuring. This useful new technique has been tested successfully by Israli …
Gold, frankincense and myrrh | Science News - The Naked Scientists
2007年12月16日 · Frankincense is a plant extract, and we all know that these can be rich sources of biologically active molecules. Some scientists funded by Cancer Research UK are currently …
Where is gravity the strongest? | Science Questions - The Naked …
2011年3月27日 · Diana - Certain rocks give certain areas of the earth's stronger gravitational pull and the bulge at the earth's equator counteracts the centrifugal force of the earth's rotation, …