Veins and Lodes are two types of minerals according to occurrence in igneous and metamorphic rocks.

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The above statement is true. Veins and Lodes are two types of minerals according to occurrence in igneous and metamorphic rocks.
Minerals were found in joints and cracks of igneous and metamorphic rocks. When mineral occurrences are tiny are called veins, and when mineral occurrences are massive are called lodes found in the joints, fissures, faults, and crevices of igneous and metamorphic rocks. Veins form when mineral components are carried by an aqueous solution inside the igneous or metamorphic rock and deposited due to precipitation. In a vein structure, numerous rich ore minerals, primarily quartz or calcite gangue minerals, native gold, silver, or metal sulphides, are deposited together.

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