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Igneous A rock that is formed from intense heat Sedimentary Rocks made from small grains quartz and feldspar Metamorphic Pertaining to or exhibiting structural change or metamorphism. Tourmaline A mineral that is commonly know to be black. Monadnock An isolated hill or ridge or erosion-resistant rock rising above a peneplain Physical weathering Any of the chemical or mechanical processes by which rocks expose to the rocks exposed to the weather undergo changes in character and break down Chemical weathering Chemical weathering is a process in which rocks are broken down by chemical processes such as oxidation, dissolution or hydration. Exfoliation Breaking off of curved sheets or slabs parallel to a rock's surface due to weathering Weathering pit Depressions in the rock in which weathering causing soil to form Rock pool A pool of water filled up by rain with rocks. Dike white stripes across the granite filled with quartz Joint Formed magma that didn't heat up. Tourmaline pod ( cat's paw) Mineral that is commonly black Xenolith a different rock embedded in an igneous rock Succession stages of plant growth which happen before a mature plant community is established Marginal ecotone A transitional zone between two communities containing the characteristic species of each. Pegmatite a coarsely crystalline granite or other igneous rock with crystals several centimeters to several meters in length Core a cylindrical sample of earth, mineral, or rock extracted from the ground by means of a corer so that the strata are undisturbed in the sample Mantle the region of the earth's interior between the crust and the core, believed to consist of hot,dense silicate rocks Crust the outer most layer of rock of which a planet consists/ the part of the earth above the mantle Migmatite a rock almost melted Igneous (of rock) having solidifed from lava or magma Sedimentary (of rock) that has formed from sediment deposited by water or air Metamorphic denoting rock that has undergone transforming by heat, pressure, or other natural ogencies, in the folding of strata or the nearby intrusion of igneous rocks Lichen The mutualistic symbiotic association of a fungus with an alga or a cyanobacteria ,or both Crutose Having a crust like appearance: crustose lichens Foliose Having leaf like thallus loosely attached to a surface, as certain Lichen Fruticose Having the form of a shrub ; shrublike Mesicforest A type of habitat with a moderate or well- balanced supply of moisture Cairn Heap of stones set up as a landmark, monument, tombstone Shale A sedimentary rock formed by the deposition of susecssive layers of clay