What is the answer to LinkedIn Pinpoint #694?
The answer is "Types of rocks" because every clue is a rock name once the board is read through geology instead of decor or construction.
Permanent Pinpoint answer & analysis (Pinpoint Today archive)
Published on 03/25/2026
Updated on 03/26/2026
This Pinpoint answer guide asks what shared idea links Marble, Obsidian, Slate, Granite, and Sandstone. Follow the spoiler-safe hints one by one, then see how each clue clicks into the final answer.
Hover (desktop) or tap (mobile) each clue before you reveal the Pinpoint answer
Detailed Pinpoint answer breakdown continues just below - keep scrolling
Marble and Granite can make this board feel like countertops or building materials at first. Slate keeps that read alive because it also appears in roofs, flooring, and design language. Sandstone is the clue that tightens everything.
It sounds more geological than decorative, which makes the rest of the set easier to reread as natural rock names.
Obsidian then stops feeling like a stylish dark material and starts behaving like another clear member of the same category.
The answer was Types of rocks.
This is one of those boards where the trick is not the clues themselves, but the everyday contexts that make them feel broader than they are.
Types of rocks
| Clue | Early read | Resolved read | Why it works |
|---|---|---|---|
| Marble | building materials | "marble rock" | Marble fits because it is a rock, even though many solvers first meet it as tile, sculpture, or countertop material. |
| Obsidian | building materials | "obsidian rock" | Obsidian helps because it is a geologic term first, which pushes the board away from decor language. |
| Slate | building materials | "slate rock" | Slate confirms the answer because it works cleanly as a rock type and not just as roofing or classroom material. |
| Granite | building materials | "granite rock" | Granite keeps the geology answer honest because it is both a rock and a very familiar building material. |
| Sandstone | building materials | "sandstone rock" | Sandstone is the turning clue because it sounds most clearly geological and least like a design finish. |
Many category boards hide behind everyday use
A clue can be a natural object first and a home or design material second.
The most scientific-sounding clue often restores the right frame
Sandstone matters because it feels less like retail language and more like geology.
Simple boards still need the narrowest lens
Building materials is close, but Types of rocks is the cleaner category because it explains every clue at the source level.
The answer is "Types of rocks" because every clue is a rock name once the board is read through geology instead of decor or construction.
The connection is geology. Marble, Obsidian, Slate, Granite, and Sandstone are all rock types, even if some of them are more familiar as materials in everyday life.
Sandstone is the turning clue because it sounds the most purely geological and helps the board move away from a vague building-materials read.