2015年1月22日 · A rock is a large stone - immovable by hand possibly; Rock is made up of stone in the sense where stone is a substance; Stones are fragments of a rock also made up of stone but are themselves objects; The problem here is differentiating between a stone and stone. One being an object and the other a substance? Once clarified then the difference ...

2012年2月24日 · A rock is bigger, possibly immovable, you couldn't throw it with one hand, at a pinch you might be able to with two. Above, a Google Image result for "Rock", below, for "Stone" Note that a boulder is probably bigger than a rock 1. Below, a boulder. Oh, also note that rocks and boulders are made from stone. (This answer is mildly tongue in cheek)

2014年1月3日 · Russell "Rock Bottom" Byars has skimmed his way into the record books, throwing a stone that skipped an amazing 51 times. I would always say the pastime (what the person does) is skimming , but to me it's perfectly reasonable to refer to what the stone does as skipping (and to call each bounce a skip , not a skim ).

2020年6月15日 · Rock can also be used in an uncountable sense when it refers to a big mass of rock, or "rock" as a general concept. Rock is a common building material. Your example sounds like it's a general rule rather than a specific finding, which indicates that it's talking about rock as a concept. Thus the correct usage is: Fossils are found in ...

Mudstone is usually refered to a carbonated mud rock in Dunham classification or carbonated rocks. A mix of silt and clay sized carbonated particles. Mudrock = No translation again. Clay = arcilla. Claystone = argilita. Silt = limo. Siltstone = limolita. You typed limonita, that is a compound of oxydes. Shale = lutita.

2014年5月27日 · I don't think there is a really conclusive absolute test one can carry out without further preparations. In the case of a permineralised fossil, this would probably require thin sectioning and close examination to see if any cellular structure diagnostic of wood remains.

covered with or full of small pieces of rock. But in the case of "stone bridge", we're saying "a bridge made out of stone" (As Edwin pointed out, stone in this case is an attributive noun) not "a bridge covered with small pieces of rock". So "stony bridge" wouldn't quite be accurate.

2019年8月29日 · It is confusing - both rocks are commonly pink overall. But, granite has abundant quartz, syenite has no quartz to very little.

2014年11月28日 · The phrase "a stone's throw" is not related to the unit of weight the stone. The phrase has a biblical original and predates the weight unit. The phrase means 'the distance you can throw a stone', and so is deliberately intended to be vague, since people throw stones for different distances, and stones weigh different amounts.

2021年1月2日 · The clast (rock fragments) within breccia are angular in shape and generally randomly orientated, a opposed to a conglomerate which is composed of rounded fragments. Sedimentary beccia generally formed in ancient stream beds. Igneous breccia forms as a result of rocks being torn away during volcanic eruptions.