crystalline mineral造句

• More than a hundred caves of varying sizes and crystalline mineral formations are spread across the park.
• A . Quartz is a fairly transparent crystalline mineral made of silicon and oxygen with two atoms of oxygen to each silicon.
• Such an outer covering, the scientists added, " is consistent with biological material and excludes the presence of crystalline mineral compounds ."
• Because of their unusual coloration, the rocks are thought to contain large amounts of quartz, a white crystalline mineral indicative of repeated heating and cooling.
• Stardust once more provides an exception to the general trend, as it appears to be totally unprocessed since its thermal condensation within stars as refractory crystalline minerals.
• Many crystalline minerals can be transformed into higher-density phases by shock waves; for example, the common mineral quartz can be transformed into the higher-pressure forms coesite and stishovite.
• The  hard phases are often strengthened by crystalline minerals, which nucleate and grow in a biomediated environment that determines the size, shape and distribution of individual crystals.
• However, older probes will be fooled by moissanite, a crystalline mineral form of silicon carbide introduced in 1998 as an alternative to diamonds, which has a similar thermal conductivity.
• Crystalline minerals formed in the physiological environment often show exceptional physical properties ( e . g ., strength, hardness, fracture toughness ) and tend to form hierarchical structures that exhibit microstructural order over a range of scales.
• Chromium was discovered as an element after it came to the attention of the Western world in the red crystalline mineral crocoite ( lead ( II ) chromate ), discovered in 1761 and initially used as a pigment.
• Crystalline minerals formed in such environment often show exceptional physical properties ( e . g . strength, hardness, fracture toughness ) and tend to form hierarchical structures that exhibit microstructural order over a range of length or spatial scales.
• Understanding the processes in which living organisms control the growth of crystalline minerals such as silica could lead to significant advances in the field of materials science, and open the door to novel synthesis techniques for nanoscale composite materials, or nanocomposites.
• The water, locked in a purple crystalline mineral called halite _ or rock salt _ remained uncontaminated by the Earth's atmosphere because scientists studied the meteorite quickly, less than 46 hours after it fell, said Everett Gibson, the NASA scientist who retrieved the space rock last year from the West Texas town of Monahans.
• When the scientists looked at a natural fracture on the rock, they noticed a blue-purple crystalline mineral that preliminary analysis showed to be halite, or common salt . ( The color was a result of bombardment by radiation during the billions of years the rock journeyed through space as part of a larger asteroid .)
• Following an exfoliation with blue crystalline minerals to slough off dead skin, a technician slathers gooey red mud over my body . ( It really is clay from the Oconee area combined with wild yam, elderberry, juniper and sage . ) Finally, I'm wrapped like a gyro, and while the mud mask goes to work, the technician massages my scalp while I doze.