Lamproite is:

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Study for the Diamond and Diamond Grading Exam. Enhance your skills with flashcards and multiple-choice questions, complete with explanations and insights. Get ready to excel in your diamond grading journey!

Multiple Choice

Lamproite is:

Explanation:
Lamproite is a mantle-derived ultrapotassic igneous rock. Recognizing it as a rock type helps: it differs from marble, which is metamorphosed limestone; basalt, a mafic volcanic rock; and kimberlite, another distinct mantle-derived rock with its own mineralogy. The correct choice is lamproite because the term identifies the specific rock type being described, while the other options point to different rock categories.

Lamproite is a mantle-derived ultrapotassic igneous rock. Recognizing it as a rock type helps: it differs from marble, which is metamorphosed limestone; basalt, a mafic volcanic rock; and kimberlite, another distinct mantle-derived rock with its own mineralogy. The correct choice is lamproite because the term identifies the specific rock type being described, while the other options point to different rock categories.

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