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Erik7777: The Granite is gone.

GC79TZ8 ▼

A cache by Erik7777 Message this owner

Hidden : 8/1/2017

Difficulty:

Terrain:

Size: Size: other (other)

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Geocache Description:

Granite

Granite is one of the most common rocks on the continental crust. Granite is a magmatic deep rock, that is, it forms when magma deep down into the soil undergoes a slow cooling process. Granite can have a coarse grain structure.

Granite consists of silica-rich minerals such as feldspar and quartz as well as smaller amounts of, for example, mica, hornblende and pyroxene. A granite can have different colors ranging from white to red and black due to differences in mineral composition and texture. Some minerals are millimeters, others can be several centimeters.

Granite is very hard and crackless and has unusually high resistance to pressure, shock and deformation; It is also insensitive to acid rain. Since it is commonplace in many parts of the world, it has become rich in street coverings, such as building blocks, masonry and ornaments and monuments.

The granite is almost always massive because it usually lacks internal structure. Banding does not occur. From a breakdown and machining perspective, granite is commonly called a hardest, unlike marble, limestone and other soft rocks called solstice. Its hardness and hence sustainability have given the granite a reputation as a stone with good qualities.

Dark or light minerals

Granite can consist of quartz (consisting of mineral silica), quartz is a light mineral. And even pyrite (which consists of iron and sulfur, often small elements of nickel, cobalt, copper, tin and arsenic) pyrite is dark. feldspar is a light mineral and the pyroxes so is a bit darker mineral.

Question

To log answer this questions:

1. How many percent of the granite at the coordinate consists of dark minerals?

2. Is the granite rough-grained or fine-grained?

3. Look carefully at the obelisk and describe what it looks like. Is it solid or does it contain cracks and joints? Why do you think that this makes it a good rock for the Obelisk? Describe and explain!

To log, send the answer to me from my profile page (link.) Or send your answer to aa1124aa@outlook.com I Contact you if somthing is wrong. You dont need to wait on answer from me to log!

Additional Hints (No hints available.)

Granite EarthCache