Which of the following is used for joining the broken pieces of glass and stones?

Options

A. Heamatite
B. Sindoor
C. Massicot
D. German silver

Explanation

To solve the question "Which of the following is used for joining the broken pieces of glass and stones?", we can follow these steps:

### Step 1: Identify the materials used for joining glass and stones
- We need to determine the substances that are commonly used for repairing or joining broken glass and stone materials.

### Step 2: Research common adhesives
- Common adhesives for glass and stone include various types of glues and compounds. One well-known compound is "mesicote," which is specifically mentioned for this purpose.

### Step 3: Understand the composition of mesicote
- Mesicote is a compound formed from a mixture of lead oxide and glycerin. It is known for its effectiveness in bonding glass and stone materials.

### Step 4: Confirm the preparation method of mesicote
- Historically, mesicote was extracted from ores, but now it is typically prepared in laboratories by mixing lead oxide and glycerin.

### Step 5: Select the correct answer
- Based on the information gathered, the correct answer to the question is that mesicote is used for joining broken pieces of glass and stones.

### Final Answer:
The compound used for joining the broken pieces of glass and stones is **mesicote**.

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