Igneous Rocks: magma/lava, obsidian, granite, rhyolite, pumice, gabbro, Sedimentary Rocks: clastic, organic, chemical, sandstone, shale, limestone, Metamorphic Rocks: heat/pressure, foliated/nonfoliated, gneiss, quartzite, marble, slate,

द्वारा

लीडरबोर्ड

दृश्य शैली

विकल्प

टेम्पलेट स्विच करें

ऑटो-सेव पुनःस्थापित करें: ?