earth science

Oppenheimer Diamond

Oppenheimer Diamond is a earth science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Oppenheimer Diamond rather than just read about it. In short: The Oppenheimer Diamond, a nearly perfectly formed 253.7 carats (50.74 g) yellow diamond crystal, is one of the largest uncut diamonds in the world, and measures approximately 20 mm × 20 mm (0.79 in × 0.79 in). It was discovered in the Dutoitspan Mine, Kimberley, South Africa (1948–1994), in 1964.

Key takeaways

Oppenheimer Diamond belongs to earth science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Oppenheimer Diamond to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Oppenheimer Diamond from memory before moving on to harder problems.

Reference excerpt

The Oppenheimer Diamond, a nearly perfectly formed 253.7 carats (50.74 g) yellow diamond crystal, is one of the largest uncut diamonds in the world, and measures approximately 20 mm × 20 mm (0.79 in × 0.79 in). It was discovered in the Dutoitspan Mine, Kimberley, South Africa (1948–1994), in 1964. Harry Winston acquired the stone and presented it to the Smithsonian Institution in memory of Sir Ernest Oppenheimer.

Illustrations

Worked examples

Example 1 — a first encounter with Oppenheimer Diamond

Start with the simplest possible case. Write down what Oppenheimer Diamond claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In earth science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Oppenheimer Diamond before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Oppenheimer Diamond ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Oppenheimer Diamond

In research: Oppenheimer Diamond appears in earth science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Oppenheimer Diamond in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Oppenheimer Diamond is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1964 in South Africa, Diamonds originating in South Africa, Individual diamonds, so understanding it makes those chapters shorter.
In everyday life: Look for Oppenheimer Diamond outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Oppenheimer Diamond in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Oppenheimer Diamond means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Oppenheimer Diamond out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Oppenheimer Diamond in simple terms?

Why does Oppenheimer Diamond matter?

Because it connects several earth science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Oppenheimer Diamond?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Oppenheimer Diamond.