"Sandstone streak" is not a standard geological term. It's likely a misinterpretation or a specific term used within a particular context. Here's why and what it could refer to:

1. Streak is a mineral property, not a rock property:

* Streak refers to the color of a mineral's powder when rubbed against a streak plate (unglazed porcelain).

* Sandstone is a rock, composed of many different mineral grains, not a single mineral.

2. Possible interpretations:

* Color variation within a sandstone: The term "streak" could be used informally to describe a color variation within a sandstone layer, especially if it's a thin, linear feature.

* Specific feature: It's possible the term is used in a specific context, like a local geological study or mining operation, with a unique definition.

3. Other related terms:

* Sandstone color: The overall color of a sandstone depends on the composition of its mineral grains. Common colors include red, brown, gray, white, and yellow.

* Sandstone texture: The texture of a sandstone describes the size, shape, and arrangement of its grains.

* Sandstone bedding: Sandstone often forms in layers, with different layers having different colors or textures. These layers are called bedding.

To understand the true meaning of "sandstone streak," you need more context. If you provide the source of the term or the context where you encountered it, I might be able to give you a more accurate answer.