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amygdaloidal's Usage Examples:

nut Amygdule, or amygdale, a mineral filled vesicle in volcanic rock, amygdaloidal texture Amygdaloid Island, an island in Lake Superior This disambiguation.

A related texture is amygdaloidal in which the volcanic rock, usually basalt or andesite, has cavities.

Rocks containing amygdules can be described as amygdaloidal.

Pumpellyite occurs as amygdaloidal and fracture fillings in basaltic and gabbroic rocks in metamorphic terranes.

like will have their vesicles filled with zeolite minerals, forming amygdaloidal texture.

a mineral of secondary origin, and occurs with other zeolites in the amygdaloidal cavities of mafic volcanic rocks: for example in the basalt of the Giants.

The dyke is composed of basaltic andesite which is amygdaloidal in places.

Thomsonite occurs with other zeolites in the amygdaloidal cavities of basaltic volcanic rocks, and occasionally in granitic pegmatites.

a hump of Keweenawan basaltic lava flows with ophitic interiors and amygdaloidal tops in an otherwise deep part of the lake, and though fishermen had.

archetypical model is generally bifacial Lithic flake and almond-shaped (amygdaloidal).

years of mining exploited the fissure deposits, then gave way to the amygdaloidal deposits.

(especially zeolites) and/or weathering products from the lava to form an amygdaloidal texture.

Near a basalt mountain at Gelenberg, an amygdaloidal layer was found in the greywacke.

Like other zeolites, mesolite occurs as void fillings in amygdaloidal basalt also in andesites and hydrothermal veins.

sometimes given rounded masses of chlorastrolite within or weathered out of amygdaloidal cavities, especially those from the area around Nipigon Bay (on Lake.

A sample of andesite (dark groundmass) with amygdaloidal vesicles filled with zeolite.

amygdaloidal's Meaning':

shaped like an almond

Synonyms:

amygdaliform; amygdaloid; almond-shaped; rounded;

Antonyms:

angular; thin; uncoiled; oblate; prolate;