It's important to clarify that "sulfur's transparency" is not a standard scientific term. It could be interpreted in a few different ways, none of which are particularly straightforward:

1. Transparency as in optical transparency:

* Solid sulfur is not transparent: It is a yellow solid with a crystalline structure.

* Liquid sulfur can be somewhat transparent: Molten sulfur is reddish-brown and can transmit light, but it's not truly transparent like glass.

2. Transparency as in chemical reactivity:

* Sulfur is not particularly transparent in this sense: It readily reacts with other elements and compounds, and its reactions can be quite complex and difficult to predict.

3. Transparency as in environmental impact:

* Sulfur's environmental impacts are well-documented and understood: It's a major contributor to acid rain and can be harmful to human health. However, this isn't the same as being "transparent."

4. Transparency as in information sharing:

* There is plenty of public information available about sulfur's properties and applications: Scientific journals, databases, and government agencies provide detailed information about sulfur.

To understand what you're asking, I need more context. Please tell me:

* What specifically do you want to know about sulfur's "transparency"?

* In what context are you thinking about it?

Once I have more information, I can give you a more accurate and relevant answer.