WebA term used to describe the texture of certain igneous rock that contain no crystals; isn't a mineral; obsidian; flash frozen. Pyroclastic. ... Granitic/Felsic Rocks. Granite and … WebSep 3, 2024 · Felsic rocks are made of light-colored, low-density minerals such as quartz and feldspar. Mafic rocks are made of dark-colored, higher-density minerals such as …

4.1: Igneous Rocks - Geosciences LibreTexts

WebGranite is a plutonic rock in which quartz makes up between 10 and 50 percent of the felsic components. Alkali feldspar accounts for 65 to 90 percent of the total feldspar content. Applying this definition requires the … WebGranite also contains some dark minerals, but they are in the minority. Secondly, granite is usually light pink, white or gray in color. If we compare these chemical and physical … dhea panic attacks

2-8-2024 Igneous Rock Properties Worksheet 2 .docx - Name:...

WebJan 11, 2024 · Igneous rocks are classified by composition and texture. The composition can be felsic, intermediate, mafic, or ultramafic. The composition depends on the minerals the rock includes. A felsic rock … WebFor example, a felsic intrusive rock is called granite, whereas a felsic extrusive rock is called rhyolite. Granite and rhyolite have the same mineral composition, but their grain … WebApr 5, 2024 · Mafic vs Felsic . Two terms are widely used to describe the characteristics of rocks and lava in the concept of mineralogy, or geology in a wider context. The terms … cigarette shopper broadway bangor