MINERALS. CRYSTALS. GEMSTONES. FIND OUT MORE. Earthâs crust is made of rock, and rock is made of natural substances called MINERALS. There are three main types of rockâsedimentary, igneous, and metamorphic rock. Each type is produced in different ways.The oldest rocks on Earth were formed about 3.8 billion years ago.INERALS. CRYSTALS. GEMSTONES. FIND OUT MORE. Earthâs crust is made of rock, and rock is made of natural substances called MINERALS. There are three main types of rockâsedimentary, igneous, and metamorphic rock. Each type is produced in different ways.
Twisted Sisters: The Texas Hill Countryâs Most Famous Trio. This route connects the Twisted SistersâHill Country Ranch Roads 335, 336 and 337ânorthwest of San Antonio, Texas. Three Hill Country Ranch Roads, 335, 336 and 337, are known throughout Texas as the Twisted Sisters, and riders come from near and far to enjoy them. For me it is near, just a short ride from my home to the first Sister.
Three Sisters is a small, rocky island off the coast of Massachusetts. Legend has it that the island was once a part of the mainland. Back in the late 1600s, during the Salem witch trials, three sisters, good witches all, known as Fire, Earth and Air, conjured the island and made it a haven against persecution. Unfortunately, the sisters did not fare as well as their island.