miarolitic造句

• Feldspar is restricted to the miarolitic cavity infilled at a later period.
• It is of secondary origin in granite pegmatites where it is found in miarolitic cavities.
• It is a late stage hydrothermal mineral and occurs rarely in granite pegmatites in miarolitic cavities.
• Occurs in miarolitic cavities in granite, in alpine veins and in scandium bearing granitic pegmatites.
• At the type locality, it occurs within a lithium-rich pegmatite in miarolitic cavities.
• At the same time, the water helped produce open pockets called " miarolitic cavities ."
• Microlite occurs as a primary mineral in lithium-bearing granite pegmatites, and in miarolitic cavities in granites.
• Although good crystal occur within solid masses of rock, the most perfectly formed specimens usually come from miarolitic cavities.
• The miarolitic cavities and miarolitic pegmatites are sources of rare and unusual minerals containing elements not found in abundance in normal igneous rocks.
• The miarolitic cavities and miarolitic pegmatites are sources of rare and unusual minerals containing elements not found in abundance in normal igneous rocks.
• The Reformatory Granite is quarried locally in and around the appropriately named town of miarolitic cavities and hydrothermal veins pervade this zone and its surroundings.
• Donnayite occurs in minute quantities in the pegmatite dykes, miarolitic cavities, and interstices in the nepheline syenites at Mont St-Hilaire, Quebec.
• It is formed by crystallizing under low pressure and high temperature from a pneumatolytic phase along fractures or within near-surface miarolitic cavities of the rhyolite.
• It was discovered in the Willow creek basin below Silver Star mountain in miarolitic cavities within the alkaline riebeckite granite phase of the Golden Horn batholith, Okanogan County, Washington.
• Greisens appear as highly vuggy with miarolitic cavities, disseminated halide minerals such as fluorite, and occasionally metallic oxide and sulfide ore minerals, borate minerals ( tourmaline ) and accessory phases such as sphene, beryl, topaz, etcetera.