Rocks are solid aggregates of one or more minerals and natural glass with a stable shape. A rock composed of a mineral is called a single ore. For example, marble is composed of calcite and quartzite is composed of quartz. Rocks composed of several minerals are called complex ore. For example, granite is composed of minerals such as quartz, feldspar and mica. The gabbro is composed of basic plagioclase and pyroxene. Liquids without a certain shape, such as oil, gas, such as natural gas, and loose sand, mud, etc., are not rocks.
Rock is one of the substances that make up the earth's crust and is the main component of the earth's lithosphere. Among them, feldspar is the most important rock-forming component in the earth's crust, with a proportion of 60%, and quartz is the second most abundant ore.
Rocks are classified according to their genesis, structure, and chemical composition. Most rocks contain silicon dioxide (SiO2), and 74.3% of the crust components are the latter. The content of silicon in rocks is one of the important factors determining rock properties.
Extore is a team of professionals who are passionate about creating extensions for web browsers. This devotion also gives us opportunity to appreciate work of other people. We get inspired by useful, open source extensions made by developers all over the world. Our strong belief is that one should share helpful add-ons with others. That’s why we’d like to present you our ever-growing list of favourite extensions that have inspired us. Moreover, as you probably have already learned, sometimes struggling for the best brings an end to the good. Talking about add-ons it often turns out that an upgrade is worse then previous version. Also it can become really tricky to get back to the beloved version of your favourite extension. That’s why we’re going to make not only the latest, but all versions of our favourite (and we hope yours too) add-ons available for download. No more compromises, just stick to the version you really like!
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