[Solved] The only sure way to identify a plagioclase feldspar from a potassium feldspar on large enough specimen to see with the naked eye is to____________ . A) find wormy exsolution lamellae going obliquely across the cleavages B) find multiple parallel twinning striations on a cleavage face C) compare their colours, plagioclase is always darker D) measure their exact cleavage angles, plagioclases have 120° Associational Unions: Organizations that represent the interests of a specific group of workers, not based on a particular workplace or employer but rather on shared professions or trades. Political Pressure: Efforts exerted by individuals, groups, or organizations aiming to influence the decisions or actions of government officials, policy-makers, or any entity in a position of power. Shareholder Model: A corporate governance framework where the primary focus is on maximizing the value for shareholders. Short-Run Profits: Earnings achieved in a short period of time, often prioritized at the expense of long-term sustainability or investment.