Because they can take long to form resulting in a large crystal well-formed. And also remeber fast forming Crystal =small, slow forming Crystal =large
Geodes form spectacular euhedral crystals due to slow, controlled crystallization inside a cavity, which allows for well-defined crystal faces to develop. The slow growth process results in the formation of large, well-formed crystals with distinct geometric shapes.
Geodes typically contain euhedral crystals (well-formed, distinct crystal shapes) lining the inside walls. These crystals form when mineral-laden water enters a cavity in a rock and then precipitates out to form the surface of the geode. Anhedral crystals, which lack well-defined faces and shapes, are less commonly found in geodes.
Geodes are hollow rock formations that contain crystals inside. They form when minerals dissolved in water seep into cavities in rocks and slowly crystallize over time. The crystals grow inward from the cavity walls, creating the unique and beautiful structures found in geodes.
Rocks with crystals inside are called geodes. Geodes are formed when mineral-rich water seeps into cavities in rocks, depositing minerals that crystallize over time.
Geodes are typically classified based on their mineral composition and the type of formation process they undergo. Common classifications include sedimentary geodes, volcanic geodes, and metamorphic geodes. Additionally, geodes can also be classified based on the type of minerals or crystals found inside them, such as amethyst geodes or quartz geodes.
Geodes form spectacular euhedral crystals due to slow, controlled crystallization inside a cavity, which allows for well-defined crystal faces to develop. The slow growth process results in the formation of large, well-formed crystals with distinct geometric shapes.
Geodes typically contain euhedral crystals (well-formed, distinct crystal shapes) lining the inside walls. These crystals form when mineral-laden water enters a cavity in a rock and then precipitates out to form the surface of the geode. Anhedral crystals, which lack well-defined faces and shapes, are less commonly found in geodes.
Geodes are hollow rock formations that contain crystals inside. They form when minerals dissolved in water seep into cavities in rocks and slowly crystallize over time. The crystals grow inward from the cavity walls, creating the unique and beautiful structures found in geodes.
Rocks with crystals inside are called geodes. Geodes are formed when mineral-rich water seeps into cavities in rocks, depositing minerals that crystallize over time.
Geodes are typically classified based on their mineral composition and the type of formation process they undergo. Common classifications include sedimentary geodes, volcanic geodes, and metamorphic geodes. Additionally, geodes can also be classified based on the type of minerals or crystals found inside them, such as amethyst geodes or quartz geodes.
geodes or crystals to add to their collection. Geodes present the opportunity to see the internal crystalline structure of a rock, while crystals exhibit various formations and colors that are visually appealing to collectors.
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Yeah calcite is in geodes. you can find some in stores or you can go on the internet and there is proof that there is calcite in geodes if you go to google.com and go to images and type in calcite in geodes ask wiki answers for more info :)!!!!
Geodes are rock cavities with internal crystal formations, usually made of quartz crystals. Some geodes are completely solid because they are filled with crystals. These are called "nodules". Geodes can form in gas bubbles in igneous rock, or in rounded cavities in sedimentary rock. Most geodes contain clear or white quartz crystals, but purple amethyst crystals are also common.
Stones with crystals inside are called geodes. Geodes are natural rock formations that contain hollow cavities lined with crystals, often quartz or amethyst. They are often cut or broken open to reveal the beautiful crystals inside.
"are filled with layers of crystals"
== == It depends on what's inside. Large amethyst geodes can go for thousands. Baseball sized geodes with non-spectacular quartz or calcite crystals can be purchased for $4-$12. Geodes with uncommon minerals that are sold on mineral auction sites range in price from $30-$500. Golf ball sized geodes, uncracked, are sold for about $2 at shows.