Mined from: Mexico Description: Rhyolite is a type of volcanic rock that is high in silica content, typically containing more than 70% by weight. Rhyolite has been used for thousands of years to create tools and weapons due to its hardness and ability to be flaked into sharp edges. Rhyolite forms from the rapid cooling of high-silica magma, often during explosive volcanic eruptions. This rapid cooling leads to the fine-grained or glassy texture. Common minerals found in rhyolite include quartz, feldspar (both plagioclase and alkali feldspar), and biotite or hornblende. These are modern arrowheads made in Mexico. Small: Approximate Size of 1 piece: 4.5cm x 1.5cm x .5cmApproximate Weight of 1 piece: 3.5g Large: Approximate Size of 1 piece: 4.5cm x 2.5cm x 1cmApproximate Weight of 1 piece: 7.5g Quantity: 1pc We do our best to buy quality products- although not every rock is the same. If you choose to purchase the "staff pick option", we will select the best of the batch for you. Otherwise, it will be at random from the larger batch we have in stock.
